International Motorcycle Manufacturers Association
24 Aug 2015 Proposals to clarify provisions in Regulations Nos. 9, 41, 63 and 92 (IMMA) GRB-62-06/Rev.1 2015-08-24 Proposal to specify that conditioning of exhaust or silencing systems is required only in cases where the fibrous materials are in contact with exhaust gases because there is no possibility for the dispersion of fibrous materials under any other condition. IMMA
16 Feb 2016 Proposal for amendments to Regulations Nos. 9, 41, 63 and 92 (IMMA) GRB-63-02 2016-02-16 UN R51 specifies that conditioning of a silencing system is necessary only in cases where exhaust gases come into contact with silencer fibrous materials. This proposal would apply the same concept in L category noise regulations. IMMA
3 Feb 2023 UN R92: Industry guideline on the anti-tampering provisions for Non-Original Replacement Exhaust Systems (NORESS) (IMMA) GRBP-77-20 2023-02-03 IMMA
13 Jun 2023 UN R92: Proposal for a reference document (IMMA) GRBP/2023/17 2023-06-13 Proposal to provide industry guidelines on anti-tampering provisions for Non-Original Replacement Exhaust Silencing Systems (NORESS) in UN Regulation No. 92. IMMA