Proposal to align the 03 series of amendments to UN R53 (as adopted during GRE-81: GRE/2018/50, as amended by GRE/2019/12) with the latest proposals for amendments to the 01 and 02 series (as adopted by GRE but not yet in force at the time of the present proposal:

1. Add references to UN R148, R149, and R150 (WP.29/2018/104/Rev.1 as amended by WP.29-177-07, and WP.29/2018/105), implementing the change index and amending the definitions (taking into consideration informal document GRE-80-05),
2. Align UN R53 with UN R148 regarding the inward geometric visibility requirements for rear position lamps (GRE/2018/28),
3. Clarify the use of direction indicators to show the status of the device for protection of a vehicle against unauthorised use and allow exterior courtesy lamps to be fitted on motorcycles (WP.29/2019/17 as amended by para. 107 of the session report and WP.29/2019/18 as amended by para. 108),
4. Align UN R53 with UN R48 and correct a mistake in a previous amendment process (WP.29/2018/86/Rev.1 andWP.29/2018/87/Rev.1),
5. Allow the use of different stop lamp activation methods, aligning the definition of “stop lamp” with UN R48 (GRE/2018/29), and
6. Introduce requirements for light emitting diode (LED) substitute light sources (GRE/2018/41).

35. The expert from IMMA presented a consolidated text of the draft 03 series of amendments to UN Regulation No. 53 which had incorporated the latest modifications to the 01 and 02 series (ECE/TRANS/WP.29/GRE/2019/23 and GRE-82-16). GRE noted that these modifications had been also included in the draft 03 series of amendments to UN Regulation No. 53 submitted for consideration of WP.29 and AC.1 in November 2019 (ECE/TRANS/WP.29/2019/80).

Proposal to

1. remove the prohibition against lamps “reciprocally incorporated” with any other lamp, correcting an oversight from a previous amendment process, and
2. update the definition of “stop lamp” in order to allow the use of different stop lamp activation methods for powered two-wheelers as currently applicable for four-wheelers; e.g. by the application of a retarder or a similar device.

112. WP.29 recalled the recommendation of AC.2 not to vote on the amendment proposals to UN Regulation No. 53 under agenda items 4.6.4 and 4.6.5 (ECE/TRANS/WP.29/2018/86 and ECE/TRANS/WP.29/2018/87), and to keep those items as pending proposals awaiting amendments to UN Regulation No. 78. The representative of IMMA pointed out that, apart from amendments on stop lamps which required corresponding modifications to UN Regulation No. 78, the amendment proposals UN Regulation No. 53 also contained corrections of errors. He proposed to extract those corrections from ECE/TRANS/WP.29/2018/86 and ECE/TRANS/WP.29/2018/87 and to submit them for consideration to the March 2019 sessions of WP.29 and AC.1. WP.29 supported IMMA and requested the secretariat to revise the documents accordingly.