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1.
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Clear description of the referenced document:
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2.
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Status of approval:
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Standards track - Best Current Practice (BCP 47)
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3.
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Justification for the specific reference:
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This specification uses language codes as defined in the reference.
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4.
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Current information, if any, about IPR issues:
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Information on IPR issues regarding RFCs is available at: https://datatracker.ietf.org/ipr/search/. Specifically: https://datatracker.ietf.org/ipr/search/?option=rfc_search&rfc_search=5646
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5.
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Other useful information describing the "Quality" of the document:
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This TS has been in existence since September 2009. It updates other widely used RFCs and is very widely recognized as a current "Best Current Practice". Obsoletes RFC 4646. Also known as BCP 47. Errata exist.
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6.
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The degree of stability or maturity of the document:
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RFC 5646 was published in September, 2009. It is a best current practice document. Langauge Tags are used widely across the Internet. Current standards status of this document can be found at http://www.rfc-editor.org/rfc5646.html.
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7.
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Relationship with other existing or emerging documents:
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RFC5646 obsoletes RFC4646, which obsoletes RFC 3066.
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8.
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Any explicit references within that referenced document should also be listed:
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[ISO10646] International Organization for Standardization, "ISO/IEC 10646:2003. Information technology -- Universal Multiple-Octet Coded Character Set (UCS)", 2003./
[ISO15924] International Organization for Standardization, "ISO 15924:2004. Information and documentation -- Codes for the representation of names of scripts", January 2004./
[ISO3166-1] International Organization for Standardization, "ISO 3166-1:1997. Codes for the representation of names of countries and their subdivisions -- Part 1: Country codes", 1997./
[ISO639-1] International Organization for Standardization, "ISO 639-1:2002. Codes for the representation of names of languages -- Part 1: Alpha-2 code", 2002./
[ISO639-2] International Organization for Standardization, "ISO 639-2:1998. Codes for the representation of names of languages -- Part 2: Alpha-3 code, first edition", 1998./
[ISO639-3] International Organization for Standardization, "ISO 639-3:2007. Codes for the representation of names of languages - Part 3: Alpha-3 code for comprehensive coverage of languages", February 2007./
[ISO639-5] International Organization for Standardization, "ISO 639-5:2008. Codes for the representation of names of languages -- Part 5: Alpha-3 code for language families and groups", May 2008./
[ISO646] International Organization for Standardization, "ISO/IEC 646:1991, Information technology -- ISO 7-bit coded character set for information interchange.", 1991./
[RFC2026] Bradner, S., "The Internet Standards Process -- Revision 3", BCP 9, RFC 2026, October 1996./
[RFC2028] Hovey, R. and S. Bradner, "The Organizations Involved in the IETF Standards Process", BCP 11, RFC 2028, October 1996./
[RFC2119] Bradner, S., "Key words for use in RFCs to Indicate Requirement Levels", BCP 14, RFC 2119, March 1997./
[RFC2277] Alvestrand, H., "IETF Policy on Character Sets and Languages", BCP 18, RFC 2277, January 1998./
[RFC2434] Narten, T. and H. Alvestrand, "Guidelines for Writing an IANA Considerations Section in RFCs", BCP 26, RFC 2434, October 1998./
[RFC2860] Carpenter, B., Baker, F., and M. Roberts, "Memorandum of Understanding Concerning the Technical Work of the Internet Assigned Numbers Authority", RFC 2860, June 2000./
[RFC3339] Klyne, G., Ed. and C. Newman, "Date and Time on the Internet: Timestamps", RFC 3339, July 2002./
[RFC4234] Crocker, D., Ed. and P. Overell, "Augmented BNF for Syntax Specifications: ABNF", RFC 4234, October 2005./
[RFC4647] Phillips, A. and M. Davis, "Matching of Language Tags", BCP 47, RFC 4647, September 2006./
[RFC5226] Narten, T. and H. Alvestrand, "Guidelines for Writing an IANA Considerations Section in RFCs", BCP 26, RFC 5226, May 2008./
[RFC5234] Crocker, D. and P. Overell, "Augmented BNF for Syntax Specifications: ABNF", STD 68, RFC 5234, January 2008./
[SpecialCasing] The Unicode Consoritum, "Unicode Character Database, Special Casing Properties", March 2008, http://unicode.org/Public/UNIDATA/SpecialCasing.txt./
[UAX14] Freitag, A., "Unicode Standard Annex #14: Line Breaking Properties", August 2006, http://www.unicode.org/reports/tr14/./
[UN_M.49] Statistics Division, United Nations, "Standard Country or Area Codes for Statistical Use", UN Standard Country or Area Codes for Statistical Use, Revision 4 (United Nations publication, Sales No. 98.XVII.9, June 1999.
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9.
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Qualification of
ISOC/IETF:
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9.1-9.6 Decisions of ITU Council to admit ISOC to participate in the work of the Sector (June 1995 and June 1996).
9.7 The Internet Engineering Steering Group (IESG) is responsible for ongoing maintenance of the RFCs when the need arises. Comments on RFCs and corresponding changes are accommodated through the existing standardization process.
9.8 Each revision of a given RFC has a different RFC number, so no confusion is possible. All RFCs always remain available on-line. An index of RFCs and their status may be found in the IETF archives at http://www.rfc-editor.org/rfc.html.
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10.
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Other (for any supplementary information):
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None.
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