53. The expert from the Russian Federation, chairing the IWG on AECS, recalled the detailed consideration of GRSG at its previous session of the new UN Regulation on AECS on the basis of ECE/TRANS/WP.29/GRSG/2017/12. He informed GRSG that the IWG had again reviewed the proposal to remove some editorial inconsistencies. He added that the latter ones have been taken into account in the official document ECE/TRANS/WP.29/2017/132 which was submitted to WP.29 and AC.1 for consideration at their November 2017 sessions. He concluded that further work needed to be done. As Secretary of the IWG on AECS, the expert from OICA introduced the revised justification document (GRSG-111-06-Rev.1) on draft UN Regulation on AECS. He reiterated his concern that Contracting Parties to the 1958 Agreement which intend to apply the Regulation should ensure the necessary infrastructure for the application of the new UN Regulation, once it enters into force.

54. GRSG reconfirmed its adoption of ECE/TRANS/WP.29/2017/132 and agreed to resume consideration on this subject at its forthcoming session, especially on the need for further developments to the new UN Regulation.

40. The expert from the Russian Federation, chairing the IWG on AECS, presented an updated proposal of draft UN Regulation on AECS (ECE/TRANS/WP.29/GRSG/2017/12). As Secretary of the IWG on AECS, the expert from OICA introduced GRSG-112-15 proposing some further editorial corrections to ECE/TRANS/WP.29/GRSG/2017/12. The expert from the Russian Federation introduced GRSG-112-27 clarifying mainly the scope and definitions of the draft UN Regulation. She informed GRSG that from, a technical point of view, the corridor of sled pulse (60g) specified in ECE/TRANS/WP.29/GRSG/2017/12 was severe enough, but taking into account the importance and urgency for the adoption of the new UN Regulation by all Contracting Parties, the Russian Federation would support the more stringent corridor (65g) in line with the EU legislation. The expert from OICA reiterated a concern about the economic burden for technical services and laboratories offering the more stringent tests due to the considerable costs of test equipment performing such acceleration/declaration of 65g.

41. Following a detailed consideration of ECE/TRANS/WP.29/GRSG/2017/12, GRSG adopted the new UN Regulation on AECS as reproduced in GRSG-112-42, subject to a final review at its October 2017 session of the official translations into the French and Russian languages. The GRSG Chair thanked again for the excellent work done by the IWG and for the acceptance by the Russian Federation to support the final proposal. The secretariat was requested to submit the adopted proposal to WP.29 and AC.1 as new draft UN Regulation on AECS for consideration at their November 2017 sessions, subject to a final review at the forthcoming GRSG session.