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/FONT><
FONT SIZE=3><
P>It is highly recommended that Study Group Questions developing new types of objects that cannot utilize an existing registration authority, <
U>use Rec. X.662 to add a new naming arc under the <
I>joint<
/I> arc<
/U>. However, as specified in Rec. X.662, any new arc added under the <
I>joint<
/I> arc has to be agreed upon jointly
(i.e. ISO and ITU-T have both to sign on such an application to ANSI
). There may be some specific cases where it is inappropriate to use the joint arc, an agreement with ISO cant be reached, or there might be lack of interest in ISO in progressing a specific naming
scheme for which registration is required.
For such specific cases the ITU-T has developed several recommendations: Rec. X.669, X.670 and X.671. Rec. X.669, maintained by the ITU-T, recommends how and what names are to be registered under the ITU-T naming arc. However again, this is highly specialized registration and its use is generally discouraged in favour of registration under the joint arc.<
/P>