GTBWGP 2021 05_List of working items for GTB Working Group Photometry by GTB Administrator | Dec 18, 2025
GTBWGP 2021 07_Requirement error in Revision 8 of UN Regulation No. 19 by GTB Administrator | Dec 18, 2025
GTBWGP 2021 08_Proposal for disabling non approved light pattern in UN R65 by GTB Administrator | Dec 18, 2025
GTBWGP 2021 09_Proposal for Category X and HT emitting light of different colours in UN R65 by GTB Administrator | Dec 18, 2025
