This arc is for the common standardization area of ISO/IEC
(International Organization for Standardization/International
Electrotechnical Commission) and ITU-T (International
Telecommunications Union - Telecommunication standardization
sector).
Information:
This arc was allocated by Rec. ITU-T X.660 | ISO/IEC 9834-1 "Procedures for the Operation of OSI Registration Authorities: General Procedures and ASN.1 Object Identifier tree top arcs".
This arc is jointly administered by ISO and ITU-T according to Rec. ITU-T X.662 | ISO/IEC 9834-3 "Procedures for the Operation of OSI Registration Authorities: Registration of Object Identifier Arcs for Joint ISO and ITU-T Work". As a consequence, all requests for registration must be jointly approved by ITU-T Study Group 17 and ISO/IEC JTC 1/SC 6 before submitting to the registration authority (i.e., ANSI (American National Standards Institute).
The subsequent arcs beneath each arc identified by this mechanisms shall be allocated in accordance with mechanisms established when the arc is allocated. It is expected that this will involve delegation of authority to the joint agreement of ITU-T and ISO Rapporteurs for a joint area of work, or to an international organization.
Note: Arcs 0 to 22 were assigned prior to 1994-03.
Per ISO/IEC 9834-3:1990, the key to register entries is as follows:
(i) Object identifier component valued allocated (Name and Number Form)
"An identifier shall consist of an arbitrary number (one or more) of letters, digits and hyphens and that the initial character shall be a lower case letter and that the last character shall not be a hyphen and that a hyphen shall not be immediately followed by a hyphen (see ISO 8824 (clause 8.3).
(ii) Brief title and area of work
(iii) ISO Work Item number
(iv) ISO Standard number + date
(v) CCITT Question identification
(vi) CCITT Recommendation number + date
(vii) ISO "Responsible Officer"
(viii) CCITT "Responsible Officer"
(ix) Status - active/deleted
All subsequent entries (beginning with 23) shall be assigned according to the above key.
Jean Shildneck, 1997-03-18
From Rec. ITU-T X.660 (2004) | ISO/IEC 9834-1:2004, "the top-level arcs are restricted to three arcs numbered 0 to 2. This enables optimized encodings to be used in which arcs 0 to 47 under top-level arc 2 encode in a single octet in an object identifier encoding (see the Rec. ITU-T X.690 series | ISO/IEC 8825 multi-part Standard).
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