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INTERNET STANDARD

    Network Working Group                                      S. Hollenbeck
    Request for Comments: 5733                                VeriSign, Inc.
    STD: 69                                                      August 2009
    Obsoletes: 4933
    Category: Standards Track

             Extensible Provisioning Protocol (EPP) Contact Mapping

    Abstract

       This document describes an Extensible Provisioning Protocol (EPP)
       mapping for the provisioning and management of individual or
       organizational social information identifiers (known as "contacts")
       stored in a shared central repository.  Specified in Extensible
       Markup Language (XML), the mapping defines EPP command syntax and
       semantics as applied to contacts.  This document obsoletes RFC 4933.

    Status of This Memo

       This document specifies an Internet standards track protocol for the
       Internet community, and requests discussion and suggestions for
       improvements.  Please refer to the current edition of the "Internet
       Official Protocol Standards" (STD 1) for the standardization state
       and status of this protocol.  Distribution of this memo is unlimited.

    Copyright Notice

       Copyright (c) 2009 IETF Trust and the persons identified as the
       document authors.  All rights reserved.

       This document is subject to BCP 78 and the IETF Trust's Legal
       Provisions Relating to IETF Documents in effect on the date of
       publication of this document (http://trustee.ietf.org/license-info).
       Please review these documents carefully, as they describe your rights
       and restrictions with respect to this document.

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    Table of Contents

       1. Introduction ....................................................3
          1.1. Conventions Used in This Document ..........................3
       2. Object Attributes ...............................................3
          2.1. Contact and Client Identifiers .............................3
          2.2. Status Values ..............................................4
          2.3. Individual and Organizational Names ........................5
          2.4. Address ....................................................6
               2.4.1. Street, City, and State or Province .................6
               2.4.2. Postal Code .........................................6
               2.4.3. Country .............................................6
          2.5. Telephone Numbers ..........................................6
          2.6. Email Addresses ............................................6
          2.7. Dates and Times ............................................6
          2.8. Authorization Information ..................................7
          2.9. Disclosure of Data Elements and Attributes .................7
       3. EPP Command Mapping .............................................8
          3.1. EPP Query Commands .........................................8
               3.1.1. EPP <check> Command .................................9
               3.1.2. EPP <info> Command .................................11
               3.1.3. EPP <transfer> Query Command .......................14
          3.2. EPP Transform Commands ....................................16
               3.2.1. EPP <create> Command ...............................17
               3.2.2. EPP <delete> Command ...............................20
               3.2.3. EPP <renew> Command ................................21
               3.2.4. EPP <transfer> Command .............................21
               3.2.5. EPP <update> Command ...............................23
          3.3. Offline Review of Requested Actions .......................26
       4. Formal Syntax ..................................................28
       5. Internationalization Considerations ............................37
       6. IANA Considerations ............................................37
       7. Security Considerations ........................................38
       8. Acknowledgements ...............................................38
       9. References .....................................................39
          9.1. Normative References ......................................39
          9.2. Informative References ....................................40
       Appendix A.  Changes from RFC 4933 . . . . . . . . . . . . . . . . 42

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    1.  Introduction

       This document describes a personal and organizational identifier
       mapping for version 1.0 of the Extensible Provisioning Protocol
       (EPP).  This mapping is specified using the Extensible Markup
       Language (XML) 1.0 as described in [W3C.REC-xml-20040204] and XML
       Schema notation as described in [W3C.REC-xmlschema-1-20041028] and
       [W3C.REC-xmlschema-2-20041028].  This document obsoletes RFC 4933
       [RFC4933].

       [RFC5730] provides a complete description of EPP command and response
       structures.  A thorough understanding of the base protocol
       specification is necessary to understand the mapping described in
       this document.

       XML is case sensitive.  Unless stated otherwise, XML specifications
       and examples provided in this document MUST be interpreted in the
       character case presented to develop a conforming implementation.

    1.1.  Conventions Used in This Document

       The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT",
       "SHOULD", "SHOULD NOT", "RECOMMENDED", "MAY", and "OPTIONAL" in this
       document are to be interpreted as described in [RFC2119].

       In examples, "C:" represents lines sent by a protocol client and "S:"
       represents lines returned by a protocol server.  Indentation and
       white space in examples are provided only to illustrate element
       relationships and are not a REQUIRED feature of this protocol.

    2.  Object Attributes

       An EPP contact object has attributes and associated values that can
       be viewed and modified by the sponsoring client or the server.  This
       section describes each attribute type in detail.  The formal syntax
       for the attribute values described here can be found in the "Formal
       Syntax" section of this document and in the appropriate normative
       references.

    2.1.  Contact and Client Identifiers

       All EPP contacts are identified by a server-unique identifier.
       Contact identifiers are character strings with a specified minimum
       length, a specified maximum length, and a specified format.  Contact
       identifiers use the "clIDType" client identifier syntax described in
       [RFC5730].

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    2.2.  Status Values

       A contact object MUST always have at least one associated status
       value.  Status values can be set only by the client that sponsors a
       contact object and by the server on which the object resides.  A
       client can change the status of a contact object using the EPP
       <update> command.  Each status value MAY be accompanied by a string
       of human-readable text that describes the rationale for the status
       applied to the object.

       A client MUST NOT alter status values set by the server.  A server
       MAY alter or override status values set by a client, subject to local
       server policies.  The status of an object MAY change as a result of
       either a client-initiated transform command or an action performed by
       a server operator.

       Status values that can be added or removed by a client are prefixed
       with "client".  Corresponding status values that can be added or
       removed by a server are prefixed with "server".  Status values that
       do not begin with either "client" or "server" are server-managed.

       Status Value Descriptions:

       -  clientDeleteProhibited, serverDeleteProhibited

          Requests to delete the object MUST be rejected.

       -  clientTransferProhibited, serverTransferProhibited

          Requests to transfer the object MUST be rejected.

       -  clientUpdateProhibited, serverUpdateProhibited

          Requests to update the object (other than to remove this status)
          MUST be rejected.

       -  linked

          The contact object has at least one active association with
          another object, such as a domain object.  Servers SHOULD provide
          services to determine existing object associations.

       -  ok

          This is the normal status value for an object that has no pending
          operations or prohibitions.  This value is set and removed by the
          server as other status values are added or removed.

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       -  pendingCreate, pendingDelete, pendingTransfer, pendingUpdate

          A transform command has been processed for the object, but the
          action has not been completed by the server.  Server operators can
          delay action completion for a variety of reasons, such as to allow
          for human review or third-party action.  A transform command that
          is processed, but whose requested action is pending, is noted with
          response code 1001.

       When the requested action has been completed, the pendingCreate,
       pendingDelete, pendingTransfer, or pendingUpdate status value MUST be
       removed.  All clients involved in the transaction MUST be notified
       using a service message that the action has been completed and that
       the status of the object has changed.

       "ok" status MAY only be combined with "linked" status.

       "linked" status MAY be combined with any status.

       "pendingDelete" status MUST NOT be combined with either
       "clientDeleteProhibited" or "serverDeleteProhibited" status.

       "pendingTransfer" status MUST NOT be combined with either
       "clientTransferProhibited" or "serverTransferProhibited" status.
       "pendingUpdate" status MUST NOT be combined with either
       "clientUpdateProhibited" or "serverUpdateProhibited" status.

       The pendingCreate, pendingDelete, pendingTransfer, and pendingUpdate
       status values MUST NOT be combined with each other.

       Other status combinations not expressly prohibited MAY be used.

    2.3.  Individual and Organizational Names

       Individual and organizational names associated with a contact are
       represented using character strings.  These strings have a specified
       minimum length and a specified maximum length.  Individual and
       organizational names MAY be provided in either UTF-8 [RFC3629] or a
       subset of UTF-8 that can be represented in 7-bit ASCII, depending on
       local needs.

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    2.4.  Address

       Every contact has associated postal-address information.  A postal
       address contains OPTIONAL street information, city information,
       OPTIONAL state/province information, an OPTIONAL postal code, and a
       country identifier.  Address information MAY be provided in either
       UTF-8 or a subset of UTF-8 that can be represented in 7-bit ASCII,
       depending on local needs.

    2.4.1.  Street, City, and State or Province

       Contact street, city, and state or province information is
       represented using character strings.  These strings have a specified
       minimum length and a specified maximum length.

    2.4.2.  Postal Code

       Contact postal codes are represented using character strings.  These
       strings have a specified minimum length and a specified maximum
       length.

    2.4.3.  Country

       Contact country identifiers are represented using two-character
       identifiers specified in [ISO3166-1].

    2.5.  Telephone Numbers

       Contact telephone number structure is derived from structures defined
       in [ITU.E164.2005].  Telephone numbers described in this mapping are
       character strings that MUST begin with a plus sign ("+", ASCII value
       0x002B), followed by a country code defined in [ITU.E164.2005],
       followed by a dot (".", ASCII value 0x002E), followed by a sequence
       of digits representing the telephone number.  An optional "x"
       attribute is provided to note telephone extension information.

    2.6.  Email Addresses

       Email address syntax is defined in [RFC5322].  This mapping does not
       prescribe minimum or maximum lengths for character strings used to
       represent email addresses.

    2.7.  Dates and Times

       Date and time attribute values MUST be represented in Universal
       Coordinated Time (UTC) using the Gregorian calendar.  The extended
       date-time form using upper case "T" and "Z" characters defined in

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       [W3C.REC-xmlschema-2-20041028] MUST be used to represent date-time
       values, as XML Schema does not support truncated date-time forms or
       lower case "T" and "Z" characters.

    2.8.  Authorization Information

       Authorization information is associated with contact objects to
       facilitate transfer operations.  Authorization information is
       assigned when a contact object is created, and it might be updated in
       the future.  This specification describes password-based
       authorization information, though other mechanisms are possible.

    2.9.  Disclosure of Data Elements and Attributes

       The EPP core protocol requires a server operator to announce data-
       collection policies to clients; see Section 2.4 of [RFC5730].  In
       conjunction with this disclosure requirement, this mapping includes
       data elements that allow a client to identify elements that require
       exceptional server-operator handling to allow or restrict disclosure
       to third parties.

       A server operator announces a default disclosure policy when
       establishing a session with a client.  When an object is created or
       updated, the client can specify contact attributes that require
       exceptional disclosure handling using an OPTIONAL <contact:disclose>
       element.  Once set, disclosure preferences can be reviewed using a
       contact-information query.  A server operator MUST reject any
       transaction that requests disclosure practices that do not conform to
       the announced data-collection policy with a 2308 error response code.

       If present, the <contact:disclose> element MUST contain a "flag"
       attribute.  The "flag" attribute contains an XML Schema boolean
       value.  A value of "true" or "1" (one) notes a client preference to
       allow disclosure of the specified elements as an exception to the
       stated data-collection policy.  A value of "false" or "0" (zero)
       notes a client preference to not allow disclosure of the specified
       elements as an exception to the stated data-collection policy.

       The <contact:disclose> element MUST contain at least one of the
       following child elements:

       <contact:name type="int"/>
       <contact:name type="loc"/>
       <contact:org type="int"/>
       <contact:org type="loc"/>
       <contact:addr type="int"/>
       <contact:addr type="loc"/>

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       <contact:voice/>
       <contact:fax/>
       <contact:email/>

       Example <contact:disclose> element, flag="0":

       <contact:disclose flag="0">
        <contact:email/>
        <contact:voice/>
       </contact:disclose>

       In this example, the contact email address and voice telephone number
       cannot be disclosed.  All other elements are subject to disclosure in
       accordance with the server's data-collection policy.

       Example <contact:disclose> element, flag="1":

       <contact:disclose flag="1">
        <contact:name type="int"/>
        <contact:org type="int"/>
        <contact:addr type="int"/>
       </contact:disclose>

       In this example, the internationalized contact name, organization,
       and address information can be disclosed.  All other elements are
       subject to disclosure in accordance with the server's data-collection
       policy.

       Client-identification features provided by the EPP <login> command
       and contact-authorization information are used to determine if a
       client is authorized to perform contact-information query commands.
       These features also determine if a client is authorized to receive
       data that is otherwise marked for non-disclosure in a query response.

    3.  EPP Command Mapping

       A detailed description of the EPP syntax and semantics can be found
       in [RFC5730].  The command mappings described here are specifically
       for use in provisioning and managing contact objects via EPP.

    3.1.  EPP Query Commands

       EPP provides three commands to retrieve contact information: <check>
       to determine if a contact object can be provisioned within a
       repository, <info> to retrieve detailed information associated with a
       contact object, and <transfer> to retrieve information regarding the
       transfer status of the contact object.

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    3.1.1.  EPP <check> Command

       The EPP <check> command is used to determine if an object can be
       provisioned within a repository.  It provides a hint that allows a
       client to anticipate the success or failure of provisioning an object
       using the <create> command, as object-provisioning requirements are
       ultimately a matter of server policy.

       In addition to the standard EPP command elements, the <check> command
       MUST contain a <contact:check> element that identifies the contact
       namespace.  The <contact:check> element contains the following child
       elements:

       -  One or more <contact:id> elements that contain the server-unique
          identifier of the contact objects to be queried.

       Example <check> command:

       C:<?xml version="1.0" encoding="UTF-8" standalone="no"?>
       C:<epp xmlns="urn:ietf:params:xml:ns:epp-1.0">
       C:  <command>
       C:    <check>
       C:      <contact:check
       C:       xmlns:contact="urn:ietf:params:xml:ns:contact-1.0">
       C:        <contact:id>sh8013</contact:id>
       C:        <contact:id>sah8013</contact:id>
       C:        <contact:id>8013sah</contact:id>
       C:      </contact:check>
       C:    </check>
       C:    <clTRID>ABC-12345</clTRID>
       C:  </command>
       C:</epp>

       When a <check> command has been processed successfully, the EPP
       <resData> element MUST contain a child <contact:chkData> element that
       identifies the contact namespace.  The <contact:chkData> element
       contains one or more <contact:cd> elements that contain the following
       child elements:

       -  A <contact:id> element that identifies the queried object.  This
          element MUST contain an "avail" attribute whose value indicates
          object availability (can it be provisioned or not) at the moment
          the <check> command was completed.  A value of "1" or "true" means
          that the object can be provisioned.  A value of "0" or "false"
          means that the object cannot be provisioned.

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       -  An OPTIONAL <contact:reason> element that MAY be provided when an
          object cannot be provisioned.  If present, this element contains
          server-specific text to help explain why the object cannot be
          provisioned.  This text MUST be represented in the response
          language previously negotiated with the client; an OPTIONAL "lang"
          attribute MAY be present to identify the language if the
          negotiated value is something other than the default value of "en"
          (English).

       Example <check> response:

       S:<?xml version="1.0" encoding="UTF-8" standalone="no"?>
       S:<epp xmlns="urn:ietf:params:xml:ns:epp-1.0">
       S:  <response>
       S:    <result code="1000">
       S:      <msg>Command completed successfully</msg>
       S:    </result>
       S:    <resData>
       S:      <contact:chkData
       S:       xmlns:contact="urn:ietf:params:xml:ns:contact-1.0">
       S:        <contact:cd>
       S:          <contact:id avail="1">sh8013</contact:id>
       S:        </contact:cd>
       S:        <contact:cd>
       S:          <contact:id avail="0">sah8013</contact:id>
       S:          <contact:reason>In use</contact:reason>
       S:        </contact:cd>
       S:        <contact:cd>
       S:          <contact:id avail="1">8013sah</contact:id>
       S:        </contact:cd>
       S:      </contact:chkData>
       S:    </resData>
       S:    <trID>
       S:      <clTRID>ABC-12345</clTRID>
       S:      <svTRID>54322-XYZ</svTRID>
       S:    </trID>
       S:  </response>
       S:</epp>

       An EPP error response MUST be returned if a <check> command cannot be
       processed for any reason.

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    3.1.2.  EPP <info> Command

       The EPP <info> command is used to retrieve information associated
       with a contact object.  In addition to the standard EPP command
       elements, the <info> command MUST contain a <contact:info> element
       that identifies the contact namespace.  The <contact:info> element
       contains the following child elements:

       -  A <contact:id> element that contains the server-unique identifier
          of the contact object to be queried.

       -  An OPTIONAL <contact:authInfo> element that contains authorization
          information associated with the contact object.  If this element
          is not provided or if the authorization information is invalid,
          server policy determines if the command is rejected or if response
          information will be returned to the client.

       Example <info> command:

       C:<?xml version="1.0" encoding="UTF-8" standalone="no"?>
       C:<epp xmlns="urn:ietf:params:xml:ns:epp-1.0">
       C:  <command>
       C:    <info>
       C:      <contact:info
       C:       xmlns:contact="urn:ietf:params:xml:ns:contact-1.0">
       C:        <contact:id>sh8013</contact:id>
       C:        <contact:authInfo>
       C:          <contact:pw>2fooBAR</contact:pw>
       C:        </contact:authInfo>
       C:      </contact:info>
       C:    </info>
       C:    <clTRID>ABC-12345</clTRID>
       C:  </command>
       C:</epp>

       When an <info> command has been processed successfully, the EPP
       <resData> element MUST contain a child <contact:infData> element that
       identifies the contact namespace.  The <contact:infData> element
       contains the following child elements:

       -  A <contact:id> element that contains the server-unique identifier
          of the contact object.

       -  A <contact:roid> element that contains the Repository Object
          IDentifier assigned to the contact object when the object was
          created.

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       -  One or more <contact:status> elements that describe the status of
          the contact object.

       -  One or two <contact:postalInfo> elements that contain postal-
          address information.  Two elements are provided so that address
          information can be provided in both internationalized and
          localized forms; a "type" attribute is used to identify the two
          forms.  If an internationalized form (type="int") is provided,
          element content MUST be represented in a subset of UTF-8 that can
          be represented in the 7-bit US-ASCII character set.  If a
          localized form (type="loc") is provided, element content MAY be
          represented in unrestricted UTF-8.  The <contact:postalInfo>
          element contains the following child elements:

          -  A <contact:name> element that contains the name of the
             individual or role represented by the contact.

          -  An OPTIONAL <contact:org> element that contains the name of the
             organization with which the contact is affiliated.

          -  A <contact:addr> element that contains address information
             associated with the contact.  A <contact:addr> element contains
             the following child elements:

             -  One, two, or three OPTIONAL <contact:street> elements that
                contain the contact's street address.

             -  A <contact:city> element that contains the contact's city.

             -  An OPTIONAL <contact:sp> element that contains the contact's
                state or province.

             -  An OPTIONAL <contact:pc> element that contains the contact's
                postal code.

             -  A <contact:cc> element that contains the contact's country
                code.

       -  An OPTIONAL <contact:voice> element that contains the contact's
          voice telephone number.

       -  An OPTIONAL <contact:fax> element that contains the contact's
          facsimile telephone number.

       -  A <contact:email> element that contains the contact's email
          address.

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       -  A <contact:clID> element that contains the identifier of the
          sponsoring client.

       -  A <contact:crID> element that contains the identifier of the
          client that created the contact object.

       -  A <contact:crDate> element that contains the date and time of
          contact-object creation.

       -  A <contact:upID> element that contains the identifier of the
          client that last updated the contact object.  This element MUST
          NOT be present if the contact has never been modified.

       -  A <contact:upDate> element that contains the date and time of the
          most recent contact-object modification.  This element MUST NOT be
          present if the contact object has never been modified.

       -  A <contact:trDate> element that contains the date and time of the
          most recent successful contact-object transfer.  This element MUST
          NOT be provided if the contact object has never been transferred.

       -  A <contact:authInfo> element that contains authorization
          information associated with the contact object.  This element MUST
          NOT be provided if the querying client is not the current
          sponsoring client.

       -  An OPTIONAL <contact:disclose> element that identifies elements
          that require exceptional server-operator handling to allow or
          restrict disclosure to third parties.  See Section 2.9 for a
          description of the child elements contained within the <contact:
          disclose> element.

       Example <info> response for an authorized client:

       S:<?xml version="1.0" encoding="UTF-8" standalone="no"?>
       S:<epp xmlns="urn:ietf:params:xml:ns:epp-1.0">
       S:  <response>
       S:    <result code="1000">
       S:      <msg>Command completed successfully</msg>
       S:    </result>
       S:    <resData>
       S:      <contact:infData
       S:       xmlns:contact="urn:ietf:params:xml:ns:contact-1.0">
       S:        <contact:id>sh8013</contact:id>
       S:        <contact:roid>SH8013-REP</contact:roid>
       S:        <contact:status s="linked"/>
       S:        <contact:status s="clientDeleteProhibited"/>
       S:        <contact:postalInfo type="int">

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       S:          <contact:name>John Doe</contact:name>
       S:          <contact:org>Example Inc.</contact:org>
       S:          <contact:addr>
       S:            <contact:street>123 Example Dr.</contact:street>
       S:            <contact:street>Suite 100</contact:street>
       S:            <contact:city>Dulles</contact:city>
       S:            <contact:sp>VA</contact:sp>
       S:            <contact:pc>20166-6503</contact:pc>
       S:            <contact:cc>US</contact:cc>
       S:          </contact:addr>
       S:        </contact:postalInfo>
       S:        <contact:voice x="1234">+1.7035555555</contact:voice>
       S:        <contact:fax>+1.7035555556</contact:fax>
       S:        <contact:email>jdoe@example.com</contact:email>
       S:        <contact:clID>ClientY</contact:clID>
       S:        <contact:crID>ClientX</contact:crID>
       S:        <contact:crDate>1999-04-03T22:00:00.0Z</contact:crDate>
       S:        <contact:upID>ClientX</contact:upID>
       S:        <contact:upDate>1999-12-03T09:00:00.0Z</contact:upDate>
       S:        <contact:trDate>2000-04-08T09:00:00.0Z</contact:trDate>
       S:        <contact:authInfo>
       S:          <contact:pw>2fooBAR</contact:pw>
       S:        </contact:authInfo>
       S:        <contact:disclose flag="0">
       S:          <contact:voice/>
       S:          <contact:email/>
       S:        </contact:disclose>
       S:      </contact:infData>
       S:    </resData>
       S:    <trID>
       S:      <clTRID>ABC-12345</clTRID>
       S:      <svTRID>54322-XYZ</svTRID>
       S:    </trID>
       S:  </response>
       S:</epp>

       An EPP error response MUST be returned if an <info> command cannot be
       processed for any reason.

    3.1.3.  EPP <transfer> Query Command

       The EPP <transfer> command provides a query operation that allows a
       client to determine the real-time status of pending and completed
       transfer requests.  In addition to the standard EPP command elements,
       the <transfer> command MUST contain an "op" attribute with value
       "query", and a <contact:transfer> element that identifies the contact
       namespace.  The <contact:transfer> element MUST contain the following
       child elements:

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       -  A <contact:id> element that contains the server-unique identifier
          of the contact object to be queried.

       -  An OPTIONAL <contact:authInfo> element that contains authorization
          information associated with the contact object.  If this element
          is not provided or if the authorization information is invalid,
          server policy determines if the command is rejected or if response
          information will be returned to the client.

       Example <transfer> query command:

       C:<?xml version="1.0" encoding="UTF-8" standalone="no"?>
       C:<epp xmlns="urn:ietf:params:xml:ns:epp-1.0">
       C:  <command>
       C:    <transfer op="query">
       C:      <contact:transfer
       C:       xmlns:contact="urn:ietf:params:xml:ns:contact-1.0">
       C:        <contact:id>sh8013</contact:id>
       C:        <contact:authInfo>
       C:          <contact:pw>2fooBAR</contact:pw>
       C:        </contact:authInfo>
       C:      </contact:transfer>
       C:    </transfer>
       C:    <clTRID>ABC-12345</clTRID>
       C:  </command>
       C:</epp>

       When a <transfer> query command has been processed successfully, the
       EPP <resData> element MUST contain a child <contact:trnData> element
       that identifies the contact namespace.  The <contact:trnData> element
       contains the following child elements:

       -  A <contact:id> element that contains the server-unique identifier
          for the queried contact.

       -  A <contact:trStatus> element that contains the state of the most
          recent transfer request.

       -  A <contact:reID> element that contains the identifier of the
          client that requested the object transfer.

       -  A <contact:reDate> element that contains the date and time that
          the transfer was requested.

       -  A <contact:acID> element that contains the identifier of the
          client that SHOULD act upon a PENDING transfer request.  For all
          other status types, the value identifies the client that took the
          indicated action.

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       -  A <contact:acDate> element that contains the date and time of a
          required or completed response.  For a pending request, the value
          identifies the date and time by which a response is required
          before an automated response action SHOULD be taken by the server.
          For all other status types, the value identifies the date and time
          when the request was completed.

       Example <transfer> query response:

       S:<?xml version="1.0" encoding="UTF-8" standalone="no"?>
       S:<epp xmlns="urn:ietf:params:xml:ns:epp-1.0">
       S:  <response>
       S:    <result code="1000">
       S:      <msg>Command completed successfully</msg>
       S:    </result>
       S:    <resData>
       S:      <contact:trnData
       S:       xmlns:contact="urn:ietf:params:xml:ns:contact-1.0">
       S:        <contact:id>sh8013</contact:id>
       S:        <contact:trStatus>pending</contact:trStatus>
       S:        <contact:reID>ClientX</contact:reID>
       S:        <contact:reDate>2000-06-06T22:00:00.0Z</contact:reDate>
       S:        <contact:acID>ClientY</contact:acID>
       S:        <contact:acDate>2000-06-11T22:00:00.0Z</contact:acDate>
       S:      </contact:trnData>
       S:    </resData>
       S:    <trID>
       S:      <clTRID>ABC-12345</clTRID>
       S:      <svTRID>54322-XYZ</svTRID>
       S:    </trID>
       S:  </response>
       S:</epp>

       An EPP error response MUST be returned if a <transfer> query command
       cannot be processed for any reason.

    3.2.  EPP Transform Commands

       EPP provides four commands to transform contact-object information:
       <create> to create an instance of a contact object, <delete> to
       delete an instance of a contact object, <transfer> to manage contact-
       object sponsorship changes, and <update> to change information
       associated with a contact object.  This document does not define a
       mapping for the EPP <renew> command.

       Transform commands are typically processed and completed in real
       time.  Server operators MAY receive and process transform commands
       but defer completing the requested action if human or third-party

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       review is required before the requested action can be completed.  In
       such situations, the server MUST return a 1001 response code to the
       client to note that the command has been received and processed but
       that the requested action is pending.  The server MUST also manage
       the status of the object that is the subject of the command to
       reflect the initiation and completion of the requested action.  Once
       the action has been completed, all clients involved in the
       transaction MUST be notified using a service message that the action
       has been completed and that the status of the object has changed.
       Other notification methods MAY be used in addition to the required
       service message.

       Server operators SHOULD confirm that a client is authorized to
       perform a transform command on a given object.  Any attempt to
       transform an object by an unauthorized client MUST be rejected, and
       the server MUST return a 2201 response code to the client to note
       that the client lacks privileges to execute the requested command.

    3.2.1.  EPP <create> Command

       The EPP <create> command provides a transform operation that allows a
       client to create a contact object.  In addition to the standard EPP
       command elements, the <create> command MUST contain a <contact:
       create> element that identifies the contact namespace.  The <contact:
       create> element contains the following child elements:

       -  A <contact:id> element that contains the desired server-unique
          identifier for the contact to be created.

       -  One or two <contact:postalInfo> elements that contain postal-
          address information.  Two elements are provided so that address
          information can be provided in both internationalized and
          localized forms; a "type" attribute is used to identify the two
          forms.  If an internationalized form (type="int") is provided,
          element content MUST be represented in a subset of UTF-8 that can
          be represented in the 7-bit US-ASCII character set.  If a
          localized form (type="loc") is provided, element content MAY be
          represented in unrestricted UTF-8.  The <contact:postalInfo>
          element contains the following child elements:

          o  A <contact:name> element that contains the name of the
             individual or role represented by the contact.

          o  An OPTIONAL <contact:org> element that contains the name of the
             organization with which the contact is affiliated.

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          o  A <contact:addr> element that contains address information
             associated with the contact.  A <contact:addr> element contains
             the following child elements:

             *  One, two, or three OPTIONAL <contact:street> elements that
                contain the contact's street address.

             *  A <contact:city> element that contains the contact's city.

             *  An OPTIONAL <contact:sp> element that contains the contact's
                state or province.

             *  An OPTIONAL <contact:pc> element that contains the contact's
                postal code.

             *  A <contact:cc> element that contains the contact's country
                code.

       -  An OPTIONAL <contact:voice> element that contains the contact's
          voice telephone number.

       -  An OPTIONAL <contact:fax> element that contains the contact's
          facsimile telephone number.

       -  A <contact:email> element that contains the contact's email
          address.

       -  A <contact:authInfo> element that contains authorization
          information to be associated with the contact object.  This
          mapping includes a password-based authentication mechanism, but
          the schema allows new mechanisms to be defined in new schemas.

       -  An OPTIONAL <contact:disclose> element that allows a client to
          identify elements that require exceptional server-operator
          handling to allow or restrict disclosure to third parties.  See
          Section 2.9 for a description of the child elements contained
          within the <contact:disclose> element.

       Example <create> command:

       C:<?xml version="1.0" encoding="UTF-8" standalone="no"?>
       C:<epp xmlns="urn:ietf:params:xml:ns:epp-1.0">
       C:  <command>
       C:    <create>
       C:      <contact:create
       C:       xmlns:contact="urn:ietf:params:xml:ns:contact-1.0">
       C:        <contact:id>sh8013</contact:id>
       C:        <contact:postalInfo type="int">

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       C:          <contact:name>John Doe</contact:name>
       C:          <contact:org>Example Inc.</contact:org>
       C:          <contact:addr>
       C:            <contact:street>123 Example Dr.</contact:street>
       C:            <contact:street>Suite 100</contact:street>
       C:            <contact:city>Dulles</contact:city>
       C:            <contact:sp>VA</contact:sp>
       C:            <contact:pc>20166-6503</contact:pc>
       C:            <contact:cc>US</contact:cc>
       C:          </contact:addr>
       C:        </contact:postalInfo>
       C:        <contact:voice x="1234">+1.7035555555</contact:voice>
       C:        <contact:fax>+1.7035555556</contact:fax>
       C:        <contact:email>jdoe@example.com</contact:email>
       C:        <contact:authInfo>
       C:          <contact:pw>2fooBAR</contact:pw>
       C:        </contact:authInfo>
       C:        <contact:disclose flag="0">
       C:          <contact:voice/>
       C:          <contact:email/>
       C:        </contact:disclose>
       C:      </contact:create>
       C:    </create>
       C:    <clTRID>ABC-12345</clTRID>
       C:  </command>
       C:</epp>

       When a <create> command has been processed successfully, the EPP
       <resData> element MUST contain a child <contact:creData> element that
       identifies the contact namespace.  The <contact:creData> element
       contains the following child elements:

       -  A <contact:id> element that contains the server-unique identifier
          for the created contact.

       -  A <contact:crDate> element that contains the date and time of
          contact-object creation.

       Example <create> response:

       S:<?xml version="1.0" encoding="UTF-8" standalone="no"?>
       S:<epp xmlns="urn:ietf:params:xml:ns:epp-1.0">
       S:  <response>
       S:    <result code="1000">
       S:      <msg>Command completed successfully</msg>
       S:    </result>
       S:    <resData>
       S:      <contact:creData

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       S:       xmlns:contact="urn:ietf:params:xml:ns:contact-1.0">
       S:        <contact:id>sh8013</contact:id>
       S:        <contact:crDate>1999-04-03T22:00:00.0Z</contact:crDate>
       S:      </contact:creData>
       S:    </resData>
       S:    <trID>
       S:      <clTRID>ABC-12345</clTRID>
       S:      <svTRID>54321-XYZ</svTRID>
       S:    </trID>
       S:  </response>
       S:</epp>

       An EPP error response MUST be returned if a <create> command cannot
       be processed for any reason.

    3.2.2.  EPP <delete> Command

       The EPP <delete> command provides a transform operation that allows a
       client to delete a contact object.  In addition to the standard EPP
       command elements, the <delete> command MUST contain a <contact:
       delete> element that identifies the contact namespace.  The <contact:
       delete> element MUST contain the following child element:

       -  A <contact:id> element that contains the server-unique identifier
          of the contact object to be deleted.

       A contact object SHOULD NOT be deleted if it is associated with other
       known objects.  An associated contact SHOULD NOT be deleted until
       associations with other known objects have been broken.  A server
       SHOULD notify clients that object relationships exist by sending a
       2305 error response code when a <delete> command is attempted and
       fails due to existing object relationships.

       Example <delete> command:

       C:<?xml version="1.0" encoding="UTF-8" standalone="no"?>
       C:<epp xmlns="urn:ietf:params:xml:ns:epp-1.0">
       C:  <command>
       C:    <delete>
       C:      <contact:delete
       C:       xmlns:contact="urn:ietf:params:xml:ns:contact-1.0">
       C:        <contact:id>sh8013</contact:id>
       C:      </contact:delete>
       C:    </delete>
       C:    <clTRID>ABC-12345</clTRID>
       C:  </command>
       C:</epp>

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       When a <delete> command has been processed successfully, a server
       MUST respond with an EPP response with no <resData> element.

       Example <delete> response:

       S:<?xml version="1.0" encoding="UTF-8" standalone="no"?>
       S:<epp xmlns="urn:ietf:params:xml:ns:epp-1.0">
       S:  <response>
       S:    <result code="1000">
       S:      <msg>Command completed successfully</msg>
       S:    </result>
       S:    <trID>
       S:      <clTRID>ABC-12345</clTRID>
       S:      <svTRID>54321-XYZ</svTRID>
       S:    </trID>
       S:  </response>
       S:</epp>

       An EPP error response MUST be returned if a <delete> command cannot
       be processed for any reason.

    3.2.3.  EPP <renew> Command

       Renewal semantics do not apply to contact objects, so there is no
       mapping defined for the EPP <renew> command.

    3.2.4.  EPP <transfer> Command

       The EPP <transfer> command provides a transform operation that allows
       a client to manage requests to transfer the sponsorship of a contact
       object.  In addition to the standard EPP command elements, the
       <transfer> command MUST contain a <contact:transfer> element that
       identifies the contact namespace.  The <contact:transfer> element
       contains the following child elements:

       -  A <contact:id> element that contains the server-unique identifier
          of the contact object for which a transfer request is to be
          created, approved, rejected, or cancelled.

       -  A <contact:authInfo> element that contains authorization
          information associated with the contact object.

       Every EPP <transfer> command MUST contain an "op" attribute that
       identifies the transfer operation to be performed, as defined in
       [RFC5730].

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       Example <transfer> request command:

       C:<?xml version="1.0" encoding="UTF-8" standalone="no"?>
       C:<epp xmlns="urn:ietf:params:xml:ns:epp-1.0">
       C:  <command>
       C:    <transfer op="request">
       C:      <contact:transfer
       C:       xmlns:contact="urn:ietf:params:xml:ns:contact-1.0">
       C:        <contact:id>sh8013</contact:id>
       C:        <contact:authInfo>
       C:          <contact:pw>2fooBAR</contact:pw>
       C:        </contact:authInfo>
       C:      </contact:transfer>
       C:    </transfer>
       C:    <clTRID>ABC-12345</clTRID>
       C:  </command>
       C:</epp>

       When a <transfer> command has been processed successfully, the EPP
       <resData> element MUST contain a child <contact:trnData> element that
       identifies the contact namespace.  The <contact:trnData> element
       contains the same child elements defined for a <transfer> query
       response.

       Example <transfer> response:

       S:<?xml version="1.0" encoding="UTF-8" standalone="no"?>
       S:<epp xmlns="urn:ietf:params:xml:ns:epp-1.0">
       S:  <response>
       S:    <result code="1001">
       S:      <msg>Command completed successfully; action pending</msg>
       S:    </result>
       S:    <resData>
       S:      <contact:trnData
       S:       xmlns:contact="urn:ietf:params:xml:ns:contact-1.0">
       S:        <contact:id>sh8013</contact:id>
       S:        <contact:trStatus>pending</contact:trStatus>
       S:        <contact:reID>ClientX</contact:reID>
       S:        <contact:reDate>2000-06-08T22:00:00.0Z</contact:reDate>
       S:        <contact:acID>ClientY</contact:acID>
       S:        <contact:acDate>2000-06-13T22:00:00.0Z</contact:acDate>
       S:      </contact:trnData>
       S:    </resData>
       S:    <trID>
       S:      <clTRID>ABC-12345</clTRID>
       S:      <svTRID>54322-XYZ</svTRID>

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       S:    </trID>
       S:  </response>
       S:</epp>

       An EPP error response MUST be returned if a <transfer> command cannot
       be processed for any reason.

    3.2.5.  EPP <update> Command

       The EPP <update> command provides a transform operation that allows a
       client to modify the attributes of a contact object.  In addition to
       the standard EPP command elements, the <update> command MUST contain
       a <contact:update> element that identifies the contact namespace.
       The <contact:update> element contains the following child elements:

       -  A <contact:id> element that contains the server-unique identifier
          of the contact object to be updated.

       -  An OPTIONAL <contact:add> element that contains attribute values
          to be added to the object.

       -  An OPTIONAL <contact:rem> element that contains attribute values
          to be removed from the object.

       -  An OPTIONAL <contact:chg> element that contains object attribute
          values to be changed.

       At least one <contact:add>, <contact:rem>, or <contact:chg> element
       MUST be provided if the command is not being extended.  All of these
       elements MAY be omitted if an <update> extension is present.  The
       <contact:add> and <contact:rem> elements contain the following child
       elements:

       -  One or more <contact:status> elements that contain status values
          to be associated with or removed from the object.  When specifying
          a value to be removed, only the attribute value is significant;
          element text is not required to match a value for removal.

       A <contact:chg> element contains the following OPTIONAL child
       elements.  At least one child element MUST be present:

       -  One or two <contact:postalInfo> elements that contain postal-
          address information.  Two elements are provided so that address
          information can be provided in both internationalized and
          localized forms; a "type" attribute is used to identify the two
          forms.  If an internationalized form (type="int") is provided,
          element content MUST be represented in a subset of UTF-8 that can
          be represented in the 7-bit US-ASCII character set.  If a

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          localized form (type="loc") is provided, element content MAY be
          represented in unrestricted UTF-8.  The <contact:postalInfo>
          element contains the following OPTIONAL child elements:

          o  A <contact:name> element that contains the name of the
             individual or role represented by the contact.

          o  A <contact:org> element that contains the name of the
             organization with which the contact is affiliated.

          o  A <contact:addr> element that contains address information
             associated with the contact.  A <contact:addr> element contains
             the following child elements:

             *  One, two, or three OPTIONAL <contact:street> elements that
                contain the contact's street address.

             *  A <contact:city> element that contains the contact's city.

             *  An OPTIONAL <contact:sp> element that contains the contact's
                state or province.

             *  An OPTIONAL <contact:pc> element that contains the contact's
                postal code.

             *  A <contact:cc> element that contains the contact's country
                code.

       -  A <contact:voice> element that contains the contact's voice
          telephone number.

       -  A <contact:fax> element that contains the contact's facsimile
          telephone number.

       -  A <contact:email> element that contains the contact's email
          address.

       -  A <contact:authInfo> element that contains authorization
          information associated with the contact object.  This mapping
          includes a password-based authentication mechanism, but the schema
          allows new mechanisms to be defined in new schemas.

       -  A <contact:disclose> element that allows a client to identify
          elements that require exceptional server-operator handling to
          allow or restrict disclosure to third parties.  See Section 2.9
          for a description of the child elements contained within the
          <contact:disclose> element.

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       Example <update> command:

       C:<?xml version="1.0" encoding="UTF-8" standalone="no"?>
       C:<epp xmlns="urn:ietf:params:xml:ns:epp-1.0">
       C:  <command>
       C:    <update>
       C:      <contact:update
       C:       xmlns:contact="urn:ietf:params:xml:ns:contact-1.0">
       C:        <contact:id>sh8013</contact:id>
       C:        <contact:add>
       C:          <contact:status s="clientDeleteProhibited"/>
       C:        </contact:add>
       C:        <contact:chg>
       C:          <contact:postalInfo type="int">
       C:            <contact:org/>
       C:            <contact:addr>
       C:              <contact:street>124 Example Dr.</contact:street>
       C:              <contact:street>Suite 200</contact:street>
       C:              <contact:city>Dulles</contact:city>
       C:              <contact:sp>VA</contact:sp>
       C:              <contact:pc>20166-6503</contact:pc>
       C:              <contact:cc>US</contact:cc>
       C:            </contact:addr>
       C:          </contact:postalInfo>
       C:          <contact:voice>+1.7034444444</contact:voice>
       C:          <contact:fax/>
       C:          <contact:authInfo>
       C:            <contact:pw>2fooBAR</contact:pw>
       C:          </contact:authInfo>
       C:          <contact:disclose flag="1">
       C:            <contact:voice/>
       C:            <contact:email/>
       C:          </contact:disclose>
       C:        </contact:chg>
       C:      </contact:update>
       C:    </update>
       C:    <clTRID>ABC-12345</clTRID>
       C:  </command>
       C:</epp>

       When an <update> command has been processed successfully, a server
       MUST respond with an EPP response with no <resData> element.

       Example <update> response:

       S:<?xml version="1.0" encoding="UTF-8" standalone="no"?>
       S:<epp xmlns="urn:ietf:params:xml:ns:epp-1.0">
       S:  <response>

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       S:    <result code="1000">
       S:      <msg>Command completed successfully</msg>
       S:    </result>
       S:    <trID>
       S:      <clTRID>ABC-12345</clTRID>
       S:      <svTRID>54321-XYZ</svTRID>
       S:    </trID>
       S:  </response>
       S:</epp>

       An EPP error response MUST be returned if an <update> command cannot
       be processed for any reason.

    3.3.  Offline Review of Requested Actions

       Commands are processed by a server in the order they are received
       from a client.  Though an immediate response confirming receipt and
       processing of the command is produced by the server, a server
       operator MAY perform an offline review of requested transform
       commands before completing the requested action.  In such situations,
       the response from the server MUST clearly note that the transform
       command has been received and processed but that the requested action
       is pending.  The status of the corresponding object MUST clearly
       reflect processing of the pending action.  The server MUST notify the
       client when offline processing of the action has been completed.

       Examples describing a <create> command that requires offline review
       are included here.  Note the result code and message returned in
       response to the <create> command.

       S:<?xml version="1.0" encoding="UTF-8" standalone="no"?>
       S:<epp xmlns="urn:ietf:params:xml:ns:epp-1.0">
       S:  <response>
       S:    <result code="1001">
       S:      <msg>Command completed successfully; action pending</msg>
       S:    </result>
       S:    <resData>
       S:      <contact:creData
       S:       xmlns:contact="urn:ietf:params:xml:ns:contact-1.0">
       S:        <contact:id>sh8013</contact:id>
       S:        <contact:crDate>1999-04-03T22:00:00.0Z</contact:crDate>
       S:      </contact:creData>
       S:    </resData>
       S:    <trID>
       S:      <clTRID>ABC-12345</clTRID>
       S:      <svTRID>54321-XYZ</svTRID>

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       S:    </trID>
       S:  </response>
       S:</epp>

       The status of the contact object after returning this response MUST
       include "pendingCreate".  The server operator reviews the request
       offline and informs the client of the outcome of the review either by
       queuing a service message for retrieval via the <poll> command or by
       using an out-of-band mechanism to inform the client of the request.

       The service message MUST contain text that describes the notification
       in the child <msg> element of the response <msgQ> element.  In
       addition, the EPP <resData> element MUST contain a child <contact:
       panData> element that identifies the contact namespace.  The
       <contact:panData> element contains the following child elements:

       -  A <contact:id> element that contains the server-unique identifier
          of the contact object.  The <contact:id> element contains a
          REQUIRED "paResult" attribute.  A positive boolean value indicates
          that the request has been approved and completed.  A negative
          boolean value indicates that the request has been denied and the
          requested action has not been taken.

       -  A <contact:paTRID> element that contains the client transaction
          identifier and server transaction identifier returned with the
          original response to process the command.  The client transaction
          identifier is OPTIONAL and will only be returned if the client
          provided an identifier with the original <create> command.

       -  A <contact:paDate> element that contains the date and time
          describing when review of the requested action was completed.

       Example "review completed" service message:

       S:<?xml version="1.0" encoding="UTF-8" standalone="no"?>
       S:<epp xmlns="urn:ietf:params:xml:ns:epp-1.0">
       S:  <response>
       S:    <result code="1301">
       S:      <msg>Command completed successfully; ack to dequeue</msg>
       S:    </result>
       S:    <msgQ count="5" id="12345">
       S:      <qDate>1999-04-04T22:01:00.0Z</qDate>
       S:      <msg>Pending action completed successfully.</msg>
       S:    </msgQ>
       S:    <resData>
       S:      <contact:panData
       S:       xmlns:contact="urn:ietf:params:xml:ns:contact-1.0">
       S:        <contact:id paResult="1">sh8013</contact:id>

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       S:        <contact:paTRID>
       S:          <clTRID>ABC-12345</clTRID>
       S:          <svTRID>54321-XYZ</svTRID>
       S:        </contact:paTRID>
       S:        <contact:paDate>1999-04-04T22:00:00.0Z</contact:paDate>
       S:      </contact:panData>
       S:    </resData>
       S:    <trID>
       S:      <clTRID>BCD-23456</clTRID>
       S:      <svTRID>65432-WXY</svTRID>
       S:    </trID>
       S:  </response>
       S:</epp>

    4.  Formal Syntax

       An EPP object mapping is specified in XML Schema notation.  The
       formal syntax presented here is a complete schema representation of
       the object mapping suitable for automated validation of EPP XML
       instances.  The BEGIN and END tags are not part of the schema; they
       are used to note the beginning and ending of the schema for URI
       registration purposes.

       Copyright (c) 2009 IETF Trust and the persons identified as authors
       of the code.  All rights reserved.

       Redistribution and use in source and binary forms, with or without
       modification, are permitted provided that the following conditions
       are met:

       o  Redistributions of source code must retain the above copyright
          notice, this list of conditions and the following disclaimer.

       o  Redistributions in binary form must reproduce the above copyright
          notice, this list of conditions and the following disclaimer in
          the documentation and/or other materials provided with the
          distribution.

       o  Neither the name of Internet Society, IETF or IETF Trust, nor the
          names of specific contributors, may be used to endorse or promote
          products derived from this software without specific prior written
          permission.

       THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
       "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
       LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
       A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT
       OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,

    Hollenbeck                  Standards Track                    [Page 28]

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       SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
       LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
       DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
       THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
       (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
       OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

       BEGIN
       <?xml version="1.0" encoding="UTF-8"?>

       <schema targetNamespace="urn:ietf:params:xml:ns:contact-1.0"
              xmlns:contact="urn:ietf:params:xml:ns:contact-1.0"
              xmlns:epp="urn:ietf:params:xml:ns:epp-1.0"
              xmlns:eppcom="urn:ietf:params:xml:ns:eppcom-1.0"
              xmlns="http://www.w3.org/2001/XMLSchema"
              elementFormDefault="qualified">

       <!--
       Import common element types.
       -->
        <import namespace="urn:ietf:params:xml:ns:eppcom-1.0"/>
        <import namespace="urn:ietf:params:xml:ns:epp-1.0"/>

        <annotation>
          <documentation>
            Extensible Provisioning Protocol v1.0
            contact provisioning schema.
          </documentation>
        </annotation>

       <!--
       Child elements found in EPP commands.
       -->
        <element name="check" type="contact:mIDType"/>
        <element name="create" type="contact:createType"/>
        <element name="delete" type="contact:sIDType"/>
        <element name="info" type="contact:authIDType"/>
        <element name="transfer" type="contact:authIDType"/>
        <element name="update" type="contact:updateType"/>

       <!--
       Utility types.
       -->
        <simpleType name="ccType">
          <restriction base="token">
            <length value="2"/>
          </restriction>
        </simpleType>

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    RFC 5733                  EPP Contact Mapping                August 2009

        <complexType name="e164Type">
          <simpleContent>
            <extension base="contact:e164StringType">
              <attribute name="x" type="token"/>
            </extension>
          </simpleContent>
        </complexType>

        <simpleType name="e164StringType">
          <restriction base="token">
            <pattern value="(\+[0-9]{1,3}\.[0-9]{1,14})?"/>
            <maxLength value="17"/>
          </restriction>
        </simpleType>

        <simpleType name="pcType">
          <restriction base="token">
            <maxLength value="16"/>
          </restriction>
        </simpleType>

        <simpleType name="postalLineType">
           <restriction base="normalizedString">
             <minLength value="1"/>
             <maxLength value="255"/>
           </restriction>
        </simpleType>

        <simpleType name="optPostalLineType">
           <restriction base="normalizedString">
             <maxLength value="255"/>
           </restriction>
        </simpleType>

       <!--
       Child elements of the <create> command.
       -->
        <complexType name="createType">
          <sequence>
            <element name="id" type="eppcom:clIDType"/>
            <element name="postalInfo" type="contact:postalInfoType"
             maxOccurs="2"/>
            <element name="voice" type="contact:e164Type"
             minOccurs="0"/>
            <element name="fax" type="contact:e164Type"
             minOccurs="0"/>
            <element name="email" type="eppcom:minTokenType"/>
            <element name="authInfo" type="contact:authInfoType"/>

    Hollenbeck                  Standards Track                    [Page 30]

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            <element name="disclose" type="contact:discloseType"
             minOccurs="0"/>
          </sequence>
        </complexType>

        <complexType name="postalInfoType">
          <sequence>
            <element name="name" type="contact:postalLineType"/>
            <element name="org" type="contact:optPostalLineType"
             minOccurs="0"/>
            <element name="addr" type="contact:addrType"/>
          </sequence>
          <attribute name="type" type="contact:postalInfoEnumType"
           use="required"/>
        </complexType>

        <simpleType name="postalInfoEnumType">
          <restriction base="token">
            <enumeration value="loc"/>
            <enumeration value="int"/>
          </restriction>
        </simpleType>

        <complexType name="addrType">
          <sequence>
            <element name="street" type="contact:optPostalLineType"
             minOccurs="0" maxOccurs="3"/>
            <element name="city" type="contact:postalLineType"/>
            <element name="sp" type="contact:optPostalLineType"
             minOccurs="0"/>
            <element name="pc" type="contact:pcType"
             minOccurs="0"/>
            <element name="cc" type="contact:ccType"/>
          </sequence>
        </complexType>

        <complexType name="authInfoType">
          <choice>
            <element name="pw" type="eppcom:pwAuthInfoType"/>
            <element name="ext" type="eppcom:extAuthInfoType"/>
          </choice>
        </complexType>

        <complexType name="discloseType">
          <sequence>
            <element name="name" type="contact:intLocType"
             minOccurs="0" maxOccurs="2"/>
            <element name="org" type="contact:intLocType"

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             minOccurs="0" maxOccurs="2"/>
            <element name="addr" type="contact:intLocType"
             minOccurs="0" maxOccurs="2"/>
            <element name="voice" minOccurs="0"/>
            <element name="fax" minOccurs="0"/>
            <element name="email" minOccurs="0"/>
          </sequence>
          <attribute name="flag" type="boolean" use="required"/>
        </complexType>

        <complexType name="intLocType">
          <attribute name="type" type="contact:postalInfoEnumType"
           use="required"/>
        </complexType>

       <!--
       Child element of commands that require only an identifier.
       -->
        <complexType name="sIDType">
          <sequence>
            <element name="id" type="eppcom:clIDType"/>
          </sequence>
        </complexType>

       <!--
       Child element of commands that accept multiple identifiers.
       -->
        <complexType name="mIDType">
          <sequence>
            <element name="id" type="eppcom:clIDType"
             maxOccurs="unbounded"/>
          </sequence>
        </complexType>

       <!--
       Child elements of the <info> and <transfer> commands.
       -->
        <complexType name="authIDType">
          <sequence>
            <element name="id" type="eppcom:clIDType"/>
            <element name="authInfo" type="contact:authInfoType"
             minOccurs="0"/>
          </sequence>
        </complexType>

       <!--
       Child elements of the <update> command.
       -->

    Hollenbeck                  Standards Track                    [Page 32]

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        <complexType name="updateType">
          <sequence>
            <element name="id" type="eppcom:clIDType"/>
            <element name="add" type="contact:addRemType"
             minOccurs="0"/>
            <element name="rem" type="contact:addRemType"
             minOccurs="0"/>
            <element name="chg" type="contact:chgType"
             minOccurs="0"/>
          </sequence>
        </complexType>

       <!--
       Data elements that can be added or removed.
       -->
        <complexType name="addRemType">
          <sequence>
            <element name="status" type="contact:statusType"
             maxOccurs="7"/>
          </sequence>
        </complexType>

       <!--
       Data elements that can be changed.
       -->
        <complexType name="chgType">
          <sequence>
            <element name="postalInfo" type="contact:chgPostalInfoType"
             minOccurs="0" maxOccurs="2"/>
            <element name="voice" type="contact:e164Type"
             minOccurs="0"/>
            <element name="fax" type="contact:e164Type"
             minOccurs="0"/>
            <element name="email" type="eppcom:minTokenType"
             minOccurs="0"/>
            <element name="authInfo" type="contact:authInfoType"
             minOccurs="0"/>
            <element name="disclose" type="contact:discloseType"
             minOccurs="0"/>
          </sequence>
        </complexType>

        <complexType name="chgPostalInfoType">
          <sequence>
            <element name="name" type="contact:postalLineType"
             minOccurs="0"/>
            <element name="org" type="contact:optPostalLineType"
             minOccurs="0"/>

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            <element name="addr" type="contact:addrType"
             minOccurs="0"/>
          </sequence>
          <attribute name="type" type="contact:postalInfoEnumType"
           use="required"/>
        </complexType>

       <!--
       Child response elements.
       -->
        <element name="chkData" type="contact:chkDataType"/>
        <element name="creData" type="contact:creDataType"/>
        <element name="infData" type="contact:infDataType"/>
        <element name="panData" type="contact:panDataType"/>
        <element name="trnData" type="contact:trnDataType"/>

       <!--
       <check> response elements.
       -->
        <complexType name="chkDataType">
          <sequence>
            <element name="cd" type="contact:checkType"
             maxOccurs="unbounded"/>
          </sequence>
        </complexType>

        <complexType name="checkType">
          <sequence>
            <element name="id" type="contact:checkIDType"/>
            <element name="reason" type="eppcom:reasonType"
             minOccurs="0"/>
          </sequence>
        </complexType>

        <complexType name="checkIDType">
          <simpleContent>
            <extension base="eppcom:clIDType">
              <attribute name="avail" type="boolean"
               use="required"/>
            </extension>
          </simpleContent>
        </complexType>

       <!--
       <create> response elements.
       -->
        <complexType name="creDataType">
          <sequence>

    Hollenbeck                  Standards Track                    [Page 34]

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            <element name="id" type="eppcom:clIDType"/>
            <element name="crDate" type="dateTime"/>
          </sequence>
        </complexType>

       <!--
       <info> response elements.
       -->
        <complexType name="infDataType">
          <sequence>
            <element name="id" type="eppcom:clIDType"/>
            <element name="roid" type="eppcom:roidType"/>
            <element name="status" type="contact:statusType"
             maxOccurs="7"/>
            <element name="postalInfo" type="contact:postalInfoType"
             maxOccurs="2"/>
            <element name="voice" type="contact:e164Type"
             minOccurs="0"/>
            <element name="fax" type="contact:e164Type"
             minOccurs="0"/>
            <element name="email" type="eppcom:minTokenType"/>
            <element name="clID" type="eppcom:clIDType"/>
            <element name="crID" type="eppcom:clIDType"/>
            <element name="crDate" type="dateTime"/>
            <element name="upID" type="eppcom:clIDType"
             minOccurs="0"/>
            <element name="upDate" type="dateTime"
             minOccurs="0"/>
            <element name="trDate" type="dateTime"
             minOccurs="0"/>
            <element name="authInfo" type="contact:authInfoType"
             minOccurs="0"/>
            <element name="disclose" type="contact:discloseType"
             minOccurs="0"/>
          </sequence>
        </complexType>

       <!--
       Status is a combination of attributes and an optional human-readable
       message that may be expressed in languages other than English.
       -->
        <complexType name="statusType">
          <simpleContent>
            <extension base="normalizedString">
              <attribute name="s" type="contact:statusValueType"
               use="required"/>
              <attribute name="lang" type="language"
               default="en"/>

    Hollenbeck                  Standards Track                    [Page 35]

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            </extension>
          </simpleContent>
        </complexType>

        <simpleType name="statusValueType">
          <restriction base="token">
            <enumeration value="clientDeleteProhibited"/>
            <enumeration value="clientTransferProhibited"/>
            <enumeration value="clientUpdateProhibited"/>
            <enumeration value="linked"/>
            <enumeration value="ok"/>
            <enumeration value="pendingCreate"/>
            <enumeration value="pendingDelete"/>
            <enumeration value="pendingTransfer"/>
            <enumeration value="pendingUpdate"/>
            <enumeration value="serverDeleteProhibited"/>
            <enumeration value="serverTransferProhibited"/>
            <enumeration value="serverUpdateProhibited"/>
          </restriction>
        </simpleType>

       <!--
       Pending action notification response elements.
       -->
        <complexType name="panDataType">
          <sequence>
            <element name="id" type="contact:paCLIDType"/>
            <element name="paTRID" type="epp:trIDType"/>
            <element name="paDate" type="dateTime"/>
          </sequence>
        </complexType>

        <complexType name="paCLIDType">
          <simpleContent>
            <extension base="eppcom:clIDType">
              <attribute name="paResult" type="boolean"
               use="required"/>
            </extension>
          </simpleContent>
        </complexType>

       <!--
       <transfer> response elements.
       -->
        <complexType name="trnDataType">
          <sequence>
            <element name="id" type="eppcom:clIDType"/>
            <element name="trStatus" type="eppcom:trStatusType"/>

    Hollenbeck                  Standards Track                    [Page 36]

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            <element name="reID" type="eppcom:clIDType"/>
            <element name="reDate" type="dateTime"/>
            <element name="acID" type="eppcom:clIDType"/>
            <element name="acDate" type="dateTime"/>
          </sequence>
        </complexType>

       <!--
       End of schema.
       -->
       </schema>
       END

    5.  Internationalization Considerations

       EPP is represented in XML, which provides native support for encoding
       information using the Unicode character set and its more compact
       representations including UTF-8.  Conformant XML processors recognize
       both UTF-8 and UTF-16 [RFC2781].  Though XML includes provisions to
       identify and use other character encodings through use of an
       "encoding" attribute in an <?xml?> declaration, use of UTF-8 is
       RECOMMENDED in environments where parser encoding support
       incompatibility exists.

       All date-time values presented via EPP MUST be expressed in Universal
       Coordinated Time using the Gregorian calendar.  The XML Schema allows
       use of time zone identifiers to indicate offsets from the zero
       meridian, but this option MUST NOT be used with EPP.  The extended
       date-time form using upper case "T" and "Z" characters defined in
       [W3C.REC-xmlschema-2-20041028] MUST be used to represent date-time
       values, as the XML Schema does not support truncated date-time forms
       or lower case "T" and "Z" characters.

       Humans, organizations, and other entities often need to represent
       social information in both a commonly understood character set and a
       locally optimized character set.  This specification provides
       features allowing representation of social information in both a
       subset of UTF-8 for broad readability and unrestricted UTF-8 for
       local optimization.

    6.  IANA Considerations

       This document uses URNs to describe XML namespaces and XML schemas
       conforming to a registry mechanism described in [RFC3688].  Two URI
       assignments have been registered by the IANA.

    Hollenbeck                  Standards Track                    [Page 37]

    RFC 5733                  EPP Contact Mapping                August 2009

       Registration request for the contact namespace:

          URI: urn:ietf:params:xml:ns:contact-1.0

          Registrant Contact: See the "Author's Address" section of this
          document.

          XML: None.  Namespace URIs do not represent an XML specification.

       Registration request for the contact XML schema:

          URI: urn:ietf:params:xml:schema:contact-1.0

          Registrant Contact: See the "Author's Address" section of this
          document.

          XML: See the "Formal Syntax" section of this document.

    7.  Security Considerations

       Authorization information as described in Section 2.8 is REQUIRED to
       create a contact object.  This information is used in some query and
       transfer operations as an additional means of determining client
       authorization to perform the command.  Failure to protect
       authorization information from inadvertent disclosure can result in
       unauthorized transfer operations and unauthorized information
       release.  Both client and server MUST ensure that authorization
       information is stored and exchanged with high-grade encryption
       mechanisms to provide privacy services.

       The object mapping described in this document does not provide any
       other security services or introduce any additional considerations
       beyond those described by [RFC5730] or those caused by the protocol
       layers used by EPP.

    8.  Acknowledgements

       RFC 3733 is a product of the PROVREG working group, which suggested
       improvements and provided many invaluable comments.  The author
       wishes to acknowledge the efforts of WG chairs Edward Lewis and Jaap
       Akkerhuis for their process and editorial contributions.  RFC 4933
       and this document are individual submissions, based on the work done
       in RFC 3733.

    Hollenbeck                  Standards Track                    [Page 38]

    RFC 5733                  EPP Contact Mapping                August 2009

       Specific suggestions that have been incorporated into this document
       were provided by Chris Bason, Eric Brunner-Williams, Jordyn Buchanan,
       Robert Burbidge, Dave Crocker, Ayesha Damaraju, Anthony Eden, Sheer
       El-Showk, Dipankar Ghosh, Klaus Malorny, Dan Manley, Michael
       Mealling, Patrick Mevzek, Asbjorn Steira, and Rick Wesson.

    9.  References

    9.1.  Normative References

       [ISO3166-1]
                  International Organization for Standardization, "Codes for
                  the representation of names of countries and their
                  subdivisions -- Part 1: Country codes", ISO Standard 3166,
                  November 2006.

       [ITU.E164.2005]
                  International Telecommunication Union, "The international
                  public telecommunication numbering plan", ITU-
                  T Recommendation E.164, February 2005.

       [RFC2119]  Bradner, S., "Key words for use in RFCs to Indicate
                  Requirement Levels", BCP 14, RFC 2119, March 1997.

       [RFC3629]  Yergeau, F., "UTF-8, a transformation format of ISO
                  10646", STD 63, RFC 3629, November 2003.

       [RFC3688]  Mealling, M., "The IETF XML Registry", BCP 81, RFC 3688,
                  January 2004.

       [RFC5322]  Resnick, P., Ed., "Internet Message Format", RFC 5322,
                  October 2008.

       [RFC5730]  Hollenbeck, S., "Extensible Provisioning Protocol (EPP)",
                  STD 69, RFC 5730, August 2009.

       [W3C.REC-xml-20040204]
                  Sperberg-McQueen, C., Maler, E., Yergeau, F., Paoli, J.,
                  and T. Bray, "Extensible Markup Language (XML) 1.0 (Third
                  Edition)", World Wide Web Consortium FirstEdition REC-xml-
                  20040204, February 2004,
                  <http://www.w3.org/TR/2004/REC-xml-20040204>.

    Hollenbeck                  Standards Track                    [Page 39]

    RFC 5733                  EPP Contact Mapping                August 2009

       [W3C.REC-xmlschema-1-20041028]
                  Maloney, M., Thompson, H., Mendelsohn, N., and D. Beech,
                  "XML Schema Part 1: Structures Second Edition", World Wide
                  Web Consortium Recommendation REC-xmlschema-1-20041028,
                  October 2004,
                  <http://www.w3.org/TR/2004/REC-xmlschema-1-20041028>.

       [W3C.REC-xmlschema-2-20041028]
                  Malhotra, A. and P. Biron, "XML Schema Part 2: Datatypes
                  Second Edition", World Wide Web Consortium
                  Recommendation REC-xmlschema-2-20041028, October 2004,
                  <http://www.w3.org/TR/2004/REC-xmlschema-2-20041028>.

    9.2.  Informative References

       [RFC2781]  Hoffman, P. and F. Yergeau, "UTF-16, an encoding of ISO
                  10646", RFC 2781, February 2000.

       [RFC4933]  Hollenbeck, S., "Extensible Provisioning Protocol (EPP)
                  Contact Mapping", RFC 4933, May 2007.

    Hollenbeck                  Standards Track                    [Page 40]

    RFC 5733                  EPP Contact Mapping                August 2009

    Appendix A.  Changes from RFC 4933

       1.   Changed "This document obsoletes RFC 3733" to "This document
            obsoletes RFC 4933".

       2.   Replaced references to RFC 0822 with references to 5322.

       3.   Replaced references to RFC 3733 with references to 4933.

       4.   Replaced references to RFC 4930 with references to 5730.

       5.   Updated reference to ISO 3166-1.

       6.   Removed pendingRenew status from Section 2.2 because this
            document does not define a mapping for the EPP <renew> command.

       7.   Modified text in Section 3.2.2 to include 2305 response code.

       8.   Updated Section 5.

       9.   Added "Other notification methods MAY be used in addition to the
            required service message" in Section 3.2.

       10.  Added 2201 response code text in Section 3.2.

       11.  Added BSD license text to XML schema section.

    Author's Address

       Scott Hollenbeck
       VeriSign, Inc.
       21345 Ridgetop Circle
       Dulles, VA  20166-6503
       US

       EMail: shollenbeck@verisign.com

    Hollenbeck                  Standards Track                    [Page 41]

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