International Motorcycle Manufacturers Association
6 Apr 2018 UN R53: Proposal to reorganize and group definitions pursuant to SLR (IMMA) SLR-23-01/Rev.1 2018-04-06 IMMA proposal to delete definitions in UN R53.02 that are already in UN R48. Under the Simplification of Lighting Regulations (SLR) program, certain common lighting device definitions would be consolidated under UN R48 (lighting installation). IMMA
6 Apr 2018 UN R74: Proposal to reorganize and group definitions pursuant to SLR (IMMA) SLR-23-02/Rev.1 2018-04-06 IMMA proposal to delete definitions in UN R74.01 that are already in UN R48. Under the Simplification of Lighting Regulations (SLR) program, certain common lighting device definitions would be consolidated under UN R48 (lighting installation). IMMA
30 Jun 2018 IMMA comments on the SLR "change index" presentation to GRE (IMMA) SLR-25-06 2018-06-30 Comments on document GRE-79-12/Rev.1 (Explanation of the “Change Index”) presented to the Working Party on Lighting on behalf of the SLR informal group. IMMA
4 Jul 2018 Wording on L-category in LSD, RID, RRD (IMMA) SLR-25-08 2018-07-04 In order to resolve the inconsistent use of the wording “motorcycle” or “category L vehicle” or others, IMMA recommends replacing the “motorcycle” by “category L vehicle” at each occurrence. IMMA
19 Sep 2018 SLR: Wording on L-category vehicle provisions in LSD, RID, RRD texts (IMMA) SLR-26-01 2018-09-19 IMMA
14 Dec 2021 SLR: Input on Stage 2-Step 2 program (IMMA) SLR-52-08 2021-12-14 IMMA
11 Oct 2022 UN R53: 04 series proposal for device transition (IMMA) SLR-58-06 2022-10-11 Proposal including transitional provisions and justifications. IMMA
11 Oct 2022 UN R74: 03 series proposal for device transition (IMMA) SLR-58-07 2022-10-11 Proposal includes transitional provisions and justification. IMMA
19 Jul 2024 UN R53: Simplification of definitions (based on UN R48) (IMMA) SLR-68-15 2024-07-19 IMMA
12 Dec 2024 UN R53: Input on simplification of definitions (IMMA) SLR-70-12 2024-12-12 IMMA
7 Feb 2025 UN R74: Simplification of definitions (IMMA) SLR-71-10/Rev.1 2025-02-07 IMMA
5 Sep 2025 UN R74: Baseline document for 03 series of amendments (IMMA) SLR-74-10 2025-09-05 IMMA
6 Feb UN R53: Baseline document for a 05 series of amendments (IMMA) SLR-76-08/Rev.1 2026-02-06 IMMA
6 Feb UN R74: Baseline document for a 04 series of amendments (IMMA) SLR-76-09/Rev.1 2026-02-06 IMMA
2 Feb Simplification of lighting regulations: Questions on transitional provisions (IMMA) SLR-76-11 2026-02-02 IMMA
8 Jun UN R53: Updated 05 series of amendments baseline document (IMMA) SLR-78-09 2026-06-08 This document proposes draft provisions for a 05 series, updating the previous baseline (SLR-71-07). Key changes include simplification of definitions by referencing UN R48 where applicable; consolidation of geometric visibility requirements with uniform formatting; incorporation of electric vehicle (EV) provisions; inclusion of rear-end collision alert signal (RECAS); replacement of legacy terminology with hyphenated forms (e.g., "direction-indicator lamp," "type-approved"); use of scientific notation for luminous intensity values; and reduction of transitional provisions to retain only the 05 series requirements. Annex 3 has been reserved and deleted. The regulation applies to the installation of lighting and light-signalling devices on motorcycles and prescribes mandatory and optional devices with specifications for position, geometric visibility, orientation, electrical connections, and tell-tales. Transitional provision dates remain undecided. IMMA