37. The GRRF Chair, Mr. Sopp (United Kingdom), informed WP.29 about the results achieved by GRRF during its seventy-first session (for more details see the report of the session ECE/TRANS/WP.29/GRRF/71).

38. The World Forum noted that Mr. Sopp had been elected GRRF Chair for the 2012 sessions.

39. The GRRF Chair reported that a number of open issues in the new Regulation on AEBS had been resolved by GRRF at its September 2011 session. However, he sought guidance on three pending proposals: (i) voluntary approval with non-pneumatic rear suspension (ECE/TRANS/WP.29/2011/92/Amend.1), (ii) removing the square brackets of paragraph 12.2. and add the text as a footnote, and (iii) note approach with M2 and N2 ≤ 8 tonnes vehicle categories (table of Annex 3 of ECE/TRANS/WP.29/93/Amend.1). WP.29 did not support the additional text on voluntary approval in proposal (i), endorsed solution (ii) and agreed to resume discussion of (iii) at the next WP.29 session with the goal that GRRF and the informal working group on AEBS should start the necessary initiatives to ensure that the AEBS requirements for such vehicles would be finalized by the end of 2013.

27. The World Forum recalled the oral report of the Chair of GRRF, given during the 155th session (ECE/TRANS/WP.29/1093, paras. 37 to 39) and approved the report.

The Chair recalled the background as follows:
2-step approach :

• • 1st step :
  • - N2 > 8 t
  • - M2 with non-hydraulic braking system
  • - M3 with non-hydraulic braking system
  • - N3 with non-hydraulic braking system

• • 2nd step:
  • More stringent criteria for the vehicles specified in step 1, + introduction of criteria for the following vehicle types and classes:
    • - N2≤8 t with hydraulic braking system
    • - M2 with hydraulic braking system
    • - M3 with hydraulic braking system

1st step and 2nd step for vehicles covered by step 1 finalized – expected to be adopted at
November 2012 session of WP29.

2nd step for vehicle types with no criteria in step 1 needs to be developed now – deadline for
decision: November 2013 session of WP29, i.e. 3 years in advance of the 2016 deadline.

The Chair concluded that this group will have to work fast and some additional meetings are
expected to be decided for the following months.