12. The experts from IWG SLR and IMMA proposed to amend the inboard visibility angle for rear position lamps in pairs in the new LSD UN Regulation (ECE/TRANS/WP.29/GRE/2018/33 and GRE-80-32). GRE adopted the proposal and requested the secretariat to submit it to WP.29 and AC.1 for consideration at their June 2018 sessions as draft Supplement 1 to the original LSD UN Regulation. GRE also recalled that this modification should be submitted together with the corresponding proposal to amend UN Regulation No. 53 (ECE/TRANS/WP.29/GRE/2018/28), which had been agreed upon at the previous session, and requested the secretariat to submit it to WP.29 and AC.1 for consideration at their June 2019 sessions as draft Supplement 4 to the 02 series and draft Supplement 22 to the 01 series of amendments to UN Regulation No. 53.

15. The expert from IMMA proposed amended definitions for UN Regulation No. 53 (ECE/TRANS/WP.29/GRE/2018/35 and GRE-80-05). GRE adopted the proposals and requested the secretariat to submit them to WP.29 and AC.1 for consideration at their June 2019 sessions as draft Supplement 4 to the 02 series of amendments to UN Regulation No. 53.

18. To introduce requirements for LED substitute light sources in the installation UN Regulations, the expert from Germany presented collective amendments to UN Regulations Nos. 48, 53, 74 and 86 (ECE/TRANS/WP.29/GRE/2018/41). The expert from OICA submitted comments (GRE-80-19). GRE adopted the proposals unamended and requested the secretariat to submit them to WP.29 and AC.1 for consideration at their June 2019 sessions as draft Supplement 12 to the 06 series of amendments to UN Regulation No. 48, draft Supplement 4 to the 02 series of amendments to UN Regulation No. 53, draft Supplement 11 to the 01 series of amendments to UN Regulation No. 74 and draft Supplement 2 to the 01 series of amendments of UN Regulation No. 86.

36. The expert from IMMA introduced a revised proposal which allowed the use of different stop lamp activation methods and aligned the stop lamp provisions with those applicable for four-wheelers (ECE/TRANS/WP.29/GRE/2018/29). GRE adopted the proposal and mandated the secretariat to submit it to WP.29 and AC.1 for consideration and vote at their November 2018 sessions as a draft Supplement 20 to the 01 series of amendments to Regulation No. 53 and as a draft Supplement 2 to the 02 series of amendments to Regulation No. 53.