42. GRSG considered GRSG-124-16, to introduce provisions for exterior rear-view mirrors fixed to the protective housing. GRSG agreed to resume discussion at its March 2023 session and requested the secretariat to distribute it with an official symbol. Moreover, the expert from OICA introduced GRSG-124-20-Rev.1 to introduce provisions adapted to centre-steered vehicles of category M2, M3, N2, N3. GRSG agreed to resume discussion at its March 2023 session and requested the secretariat to distribute GRSG-124-20-Rev.1 with an official symbol.