19. The expert from EC informed GRB that his organization was not favourable to incorporating the ASEP provisions into UN Regulations Nos. 9, 63 and 92 because they were ineffective for L categories of vehicles and would rather create difficulties in type approval procedures. However, he added that anti-tampering provisions were still needed to cover all L categories. The expert from IMMA recalled that the 07 series of amendments to UN Regulation No. 9 and the 02 series of amendments to UN Regulation No. 63, recently adopted, already introduced provisions of this kind. GRB agreed to resume consideration on this agenda item at its January 2014 session on the basis of possible concrete proposal that would cover the remaining issues.