18. The expert from OICA presented GRSG-101-21 clarifying the requirements on rear underrun protection devices. The expert from the United Kingdom introduced GRSG-101-26 amending the transitional provisions of draft Supplement 1 to the 02 series of amendments to Regulation No. 58, adopted at the previous session of GRSG. Following the discussion, GRSG agreed on the proposal as reproduced in GRSG-101-21-Rev.1 and requested the secretariat to submit it to WP.29 and AC.1 for consideration at their November 2011 session, as a Corrigendum to ECE/TRANS/WP.29/2011/107. [Note by the secretariat: see informal document WP.29-155-04.]
19. The expert from Germany recalled the purpose of documents GRSG-100-25 and ECE/TRANS/WP.29/GRSG/2011/19 proposing to introduce, into Regulation No. 58, more stringent requirements for rear underrun protection devices. The expert from Japan introduced informal documents GRSG-101-10-Rev.1, GRSG-101-27 and GRSG-101-28 amending ECE/TRANS/WP.29/GRSG/2011/19. GRSG welcomed the proposals and noted a number of comments. Following the discussion, the expert from Germany volunteered to organize an ad hoc expert meeting to further discuss the open issues. He invited all GRSG experts to attend that meeting, scheduled to be held on 23 January 2012. GRSG agreed to resume consideration on this subject at its next session in April 2012 on the basis of a revised proposal to be submitted by Germany, taking into account the outcome of the discussion of the ad hoc meeting.
20. GRSG considered proposals to align the transitional provisions of the 02 series of amendments to the Regulation with the general guidelines adopted in TRANS/WP.29/1044 (ECE/TRANS/WP.29/GRSG/2011/33 and ECE/TRANS/WP.29/GRSG/2011/34). GRSG adopted ECE/TRANS/WP.29/GRSG/2011/34, as amended below, and requested the secretariat to submit it to WP.29 and AC.1 for consideration at their March 2012 session, as draft Supplement 2 to the 02 series of amendments to Regulation No. 58:
Paragraph 31.5., amend to read: