scope:

a) In the Introduction, insert the following paragraph immediately prior to the paragraph that begins with "An ASN.1 specification will initially be produced with a set of fully defined ASN.1 types.":

It is also possible to assign encoding instructions to a type in order to affect the encoding of that type. This can be done either by a type prefix placed before a type definition or use of a type reference, or by an encoding control section placed at the end of an ASN.1 module. The generic syntax of type prefixes and encoding control sections is specified in this Recommendation | International Standard, and includes an encoding reference to identify the encoding rules that are modified by the encoding instruction. The semantics and detailed syntax of encoding instructions are specified in the encoding rules Recommendation | International Standard identified by the encoding reference.

b) In the Introduction, insert the following paragraph between the paragraphs beginning with "Annex C" and "Annex D":

Annex C bis forms an integral part of this Recommendation | International Standard and specifies the currently defined encoding references and the Recommendation | International Standard that defines the semantics and detailed syntax of encoding instructions with those encoding references.