40. The GRB Chair reported on the results achieved by GRB during its fifty-fourth session (for details see report of the session ECE/TRANS/WP.29/GRB/52).

41. Regarding Regulation No. 117 (Tyre rolling resistance, rolling noise and wet grip), he clarified that GRB adopted a Supplement to the Regulation that will not affect the existing test methods but will rather constitute an alternative to improve the accuracy of the deceleration method.

42. The World Forum noted that Mr. Ch. Theis (Germany) had been re-elected as GRB Chair for the 2012 sessions.

28. The World Forum recalled the oral report of the Chair of GRB, given during the 155th session (ECE/TRANS/WP.29/1093, paras. 40 to 42) and approved the report.

11. GRB agreed with the suggestion by the expert from the United Kingdom to amend paragraph 6 of the report ECE/TRANS/WP.29/GRB/52 of the previous GRB session as follows:

“… Moreover, the expert from the United Kingdom also supported the proposal and underlined that the longer time period between stages was welcome on the condition of with respect to the high power sport cars where platform life is longer than conventional cars…”