Proposal from the CS/OTA informal group to update the interpretation document pursuant to amendments introduced via the 01 series of amendments to UN R156.
Proposal to introduce provisions for implementing the option (contained in footnote) for approval of certain “medium-duty” vehicles either under UN R152 (M1/N1) or UN R131 (M2/N2 /M3). The proposal aims to clarify terms and establish procedures for demonstrating equivalent performance.