GRSG-131-49
UN R49: Proposal for Supplement 3to the 02 series of amendments

Proposal to amend UN Regulation No. 39 (Speedometer and odometer) to introduce software update references and identification. New provisions add definitions regarding Software Identification Number, refer to Consolidated Resolution on the Construction of Vehicles (R.E.3), Annex 7, paragraph 2. Modifications address production definitively discontinued, software updates for registered vehicles, hardware and software information provision, vehicle approval for differentiating software versions, and additional information regarding software identification. The proposal references ECE/TRANS/WP.29/1175, paragraph 37, and incorporates provisions from R.E.3 Annex 7 to define R39SWIN as dedicated identifier representing type-approval relevant software information.

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Excerpts from session reports
GRSG | Session 131 | 13-17 Apr

49. GRSG agreed to discuss GRSG-131-49 under agenda item 14(j).

50. The expert from France introduced GRSG-131-49. The GRSG aimed at improving the Regulation by introducing software update references and identification. He added that this was needed to introduce the provisions on identification and update of software in each affected UN Regulation, using the guidance provided in Annex 7 of the Consolidated Resolution on the Construction of Vehicles (R.E.3).
51. The secretariat was requested to distribute GRSG-131-49 with an official symbol at its October 2026 session.