30. GRSG noted that the revised general guidelines for UN regulatory procedures and transitional provisions in UN Regulations (ECE/TRANS/WP.29/1044/Rev.1) were now available on the UNECE website.

31. The GRSG Chair invited all experts to use this document when preparing future proposals for amendments especially with respect to transitional provisions.

32. Referring to the discussion at the previous session of GRSG on ECE/TRANS/WP.29/GRSG/2011/22, the expert from the Netherlands presented GRSG-102-28 (superseding GRSG-102-05) clarifying in UN Regulation No. 61 the communication form to include withdrawal and extension of approvals. GRSG adopted the proposal, as reproduced in Annex V to this report, and requested the secretariat to submit it to WP.29 and AC.1 for consideration at their November 2012 sessions, as part (see para. 21 above) of draft Supplement 2 to UN Regulation No. 61. The Chair reminded GRSG experts to include, if appropriate, into their proposals provisions for the withdrawal and extension of approvals, when preparing an amendment to an existing UN Regulation.