GRB-63-02
Proposal for amendments to Regulations Nos. 9, 41, 63 and 92 (IMMA)
Proposal for amendments to Regulations Nos. 9, 41, 63 and 92
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.
GRB-63-07
Amendment proposals for Regulation No. 63 (EC)
Amendment proposals for Regulation No. 63
Based on the outcomes of a European Commission study, proposal to clarify the text and align its provisions with other vehicle sound regulations, especially UN R41, including to replace references to “two wheeled moped” with the term “L1 category vehicles” (and consequently to replace references to “moped” with “vehicle”) and to replace the term “noise” with “sound” (except for references to background noise) throughout the regulation.