144. The representative of Italy informed AC.3 that GRVA should address, at its September 2021 session, a proposal to amend requirements for motorcycle braking. He announced that the proposal would deal with the introduction of stop lamp activation under regenerative braking and the updating of the references to American Society for Testing and Materials (ASTM) standards for the determination of the Peak Braking Coefficient (PBC). He added that the proposed requirements, if agreed by GRVA, could be submitted to AC.3 as a proposal to amend to UN GTR No. 3.