20. The Chair recalled the purpose of ECE/TRANS/WP.29/GRSG/2012/17 (tabled by AEGPL) clarifying the provisions on the aerostatic pressure during the external leakage test of Class 0 components. The expert from Germany introduced GRSG-103-24 to amend and correct the current text of UN Regulation No. 67. GRSG adopted both documents, as reproduced in Annex II to this report, and requested the secretariat to submit the amendments to WP.29 and AC.1 for consideration at their March 2013 sessions as draft Supplement 12 to the 01 series of amendments to UN Regulation No. 67.

21. The expert from Germany presented ECE/TRANS/WP.29/GRSG/2012/18 clarifying the provisions of UN Regulation No. 67 with respect to hose assemblies. The expert from AEGPL supplemented the proposal with additional amendments as listed in ECE/TRANS/WP.29/GRSG/2012/19. GRSG noted some concerns and decided on the need to further clarify the responsibility and conformity of production procedures. Following the discussion, GRSG agreed to resume consideration of this subject at its next session on the basis of a revised proposal by Germany. GRSG recommended keeping ECE/TRANS/WP.29/GRSG/2012/18 and ECE/TRANS/WP.29/GRSG/2012/19 on the agenda as reference documents.

22. The expert from CLEPA introduced ECE/TRANS/WP.29/GRSG/2012/24 proposing new requirements for Liquefied Petroleum Gas (LPG) fuel selection systems. The expert from AEGPL presented GRSG-103-06 amending the proposed paragraphs. GRSG noted general support and some comments. GRSG agreed to resume consideration of this subject at its next session on the basis of a revised proposal by AEGPL/CLEPA, taking into the comments received.

28. The expert from IMMA recalled WP.29-157-10 (tabled by Italy in June 2012) proposing the development of an amendment to Global Technical Regulation (GTR) No. 12 on controls, tell-tales and indicators for motorcycles. He presented GRSG-103-10-Rev.1 amending ECE/TRANS/WP.29/GRSG/2012/21 to introduce into the GTR editorial corrections and align the provisions with those of UN Regulation No. 60 (ECE/TRANS/WP.29/GRSG/2012/20). The documents received some comments.

29. GRSG adopted ECE/TRANS/WP.29/GRSG/2012/20, as amended by Annex IV to this report, and requested the secretariat to submit it to WP.29 and AC.1 for consideration at their March 2013 sessions, as draft Supplement 4 to UN Regulation No. 60.

30. GRSG also adopted ECE/TRANS/WP.29/GRSG/2012/21, as amended by Annex V to this report. The secretariat was requested to submit it to WP.29 and AC.3 for consideration at their March 2013 sessions, as draft Amendment 1 to UN GTR No. 12, including the technical report listed in Annex V.