152. The representative of the United States of America, on behalf of the Chair of IWG on Quiet Road Transport Vehicle GTR (QRTV GTR), recalled that the work of IWG had been put on hold, pending consideration of several petitions to the Federal Motor Vehicle Safety Standard (FMVSS) No. 141 on Minimum Sound Requirements for Hybrid and Electric Vehicles. She reported that one petition had been considered so far. She estimated that, in September 2019, 50 % of all hybrid and electric vehicles in the United States of America were in compliance with the FMVSS No. 141 and that this figure was expected to reach 100 % in September 2020.