Working draft prepared for consideration during the 20th subgroup session.

Updated draft set of guidelines prepared by the WP.29 secretariat concerning the submission and adoption of modifications to UN Regulations, especially taking into consideration the pending Revision 3 to the 1958 Agreement which envisions, among other things, the acceptance to multiple “versions” of each regulation. This document covers: amendments resulting from draft Revision 3; publication of new series of amendments; long transitional provisions; versions of UN Regulations; use of cross-references; amendment commencement dates; consolidation of amendments to once per year; and use of “compilations” of modifications.