Proposal for amendments to Regulations Nos. 9, 41, 63 and 92
Reference Number: GRB-63-02
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.
Amendment proposals for Regulations Nos. 9, 63 and 92
Reference Number: GRB-63-03
Explanation of recommendations developed for the European Commission by LAT, TNO, Heinz Steven, and TÜV Nord for the improvement of the regulations with regard to additional sound emission provisions.