15. GRBP recalled the adopted guidelines on antitampering provisions for Non-Original Replacement Exhaust Systems (NORESS) and considered a proposal of a special interest group that integrated the guidelines into the legal text of UN Regulation No. 92 (ECE/TRANS/WP.29/GRBP/2024/21). In the course of an in-depth discussion, GRBP came to the conclusion that this proposal would require a new series of amendments. GRBP adopted the proposal, as amended by GRBP-80-29-Rev.3, and requested the secretariat to submit it for consideration and vote at the March 2025 sessions of WP.29 and the Administrative Committee of the 1958 Agreement (AC.1) as draft 03 series of amendments to UN Regulation No. 92.

41. The expert from IMMA introduced a draft document for reference with industry guidelines on the antitampering provisions for Non-Original Replacement Exhaust Systems (NORESS) in UN Regulation No. 92 (GRBP-77-20). GRBP experts generally supported the document and made several suggestions for improvement. GRBP agreed to revert to this issue at the next session in order to update the document and later publish it as a document of reference on the GRBP website.