16. The expert of IWG SLR proposed a new Supplement to the 06, 07 and 08 series of amendments to UN Regulation No. 48 which introduced an objective value to define the visibility of the red light towards the front and white light towards the rear of the vehicle. He also made further editorial corrections (ECE/TRANS/WP.29/GRE/2021/16). The expert from Germany suggested modifications (GRE-85-23).

17. GRE adopted ECE/TRANS/WP.29/GRE/2021/16, as amended by GRE-85-23, and requested the secretariat to submit it for consideration and vote at the June 2022 sessions of WP.29 and AC.1 as draft Supplement 16 to the 06 series of amendments, draft Supplement 3 to the 07 series of amendments and draft Supplement 1 to the 08 series of amendments to UN Regulation No. 48.

18. GRE considered a proposal for a Supplement to the 03, 04 and 05 series of amendments to UN Regulation No. 48 that introduced references to the headlamp classes and a performance-oriented criterion for the visibility of red light to the front and white light to the rear of the vehicle (ECE/TRANS/WP.29/GRE/2021/17, GRE-85-12).

19. Subject to reservation of the expert from Germany, GRE adopted ECE/TRANS/WP.29/GRE/2021/17 subject to the following amendments:

• those in GRE-85-12;
• removing the square brackets and keeping the text inside;
• adding paragraph 6.26.9.2 from ECE/TRANS/WP.29/GRE/2021/16 to parts I.B and I.C of ECE/TRANS/WP.29/GRE/2021/17.

20. GRE requested the secretariat to submit the proposal for consideration and vote at the June 2022 sessions of WP.29 and AC.1 as draft Supplement 8 to the 03 series of amendments, draft Supplement 21 to the 04 series of amendments and draft Supplement 16 to the 05 series of amendments to UN Regulation No. 48.

27. GRE stressed that the adopted amendments to UN Regulations Nos. 48, 53, 74, 86, 148, 149 and 150, as reflected in paragraphs 9, 12, 15, 17, 20, 23–26, 31 and 33, should be submitted as a package to the June 2022 sessions of WP.29 and AC.1. GRE agreed to review these proposals at its next session in April 2022.

16. The experts of IWG presented draft proposals for Supplements to different series of amendments to UN Regulations Nos. 48, 53, 74 and 86 (GRE-84-05, GRE-84-06, GRE-84-07, GRE-84-08, GRE-84-09, GRE-84-10). Following a brief exchange of views, GRE invited all experts to provide comments to IWG SLR and requested IWG SLR to finalize the proposals as working documents for the next GRE session.