6. The Chair of the Informal Working Group on Additional Sound Emission Provisions (IWG ASEP) proposed to introduce transitional provisions for Supplements 4 and 5 to the 03 series of amendments to UN Regulation No. 51 (ECE/TRANS/WP.29/GRB/2019/9 and ECE/TRANS/WP.29/GRB/2019/11). GRB adopted these proposals and recalled that Supplement 5 would still be considered by WP.29 at its session in March 2019 (ECE/TRANS/WP.29/2019/4). To speed up the amendment process, GRB requested the secretariat to issue a revised version of ECE/TRANS/WP.29/2019/4 with the adopted transitional provisions.
7. GRB also noted that, during the adoption of Supplement 4 to the 03 series of amendments, a sentence in Annex 3, paragraph 3.1.2.1.4.2. had been deleted by mistake (ECE/TRANS/WP.29/GRB/2019/9). To restore the sentence, GRB requested the secretariat to issue a corrigendum to the Supplement which would be deemed applicable ab initio. GRB also adopted a minor editorial correction to Annex 3, paragraph 3.1.2.1. (ECE/TRANS/WP.29/GRB/2019/8).
8. The Chair of IWG ASEP proposed a new Supplement 6 to the 03 series of amendments with the aim to correct a reference and to clarify the requirements for stationary sound (ECE/TRANS/WP.29/GRB/2019/10). The expert from Germany, supported by the expert from the Netherlands, raised several issues concerning the proposal. GRB decided to postpone the discussion to the next session and invited all parties concerned to prepare a revised wording which would address the concerns of the expert from Germany.
9. The expert from China reported on a preliminary study of the test methods for the 03 series of amendments to UN Regulation No. 51 (GRB-69-18). GRB noted this information and decided to revert to the topic once more results would be available.