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(Latest posted on 1 Jul 2025)
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1 July R51/R138: Agenda for the 12th (July 2025) session
R51/R138-12-01
R51/R138-12-01 2025-07-01
1 July Background on proposal for setting sound limits (OICA)
R51/R138-12-02
R51/R138-12-02 2025-07-01
24 June Minutes of the 11th (June 2025) R51/R138 informal subgroup session
R51/R138-11-04
R51/R138-11-04 2025-06-24
20 June Minutes of the 10th (June 2025) R51/R138 informal subgroup session
R51/R138-10-03
R51/R138-10-03 2025-06-20
20 June Vehicle external sound: Questions to be discussed
R51/R138-11-02
R51/R138-11-02 2025-06-20
20 June Proposal for Exterior Sound Enhancement System (ESES) requirements (OICA)
R51/R138-11-03
R51/R138-11-03 2025-06-20
20 June Key points on Exterior Sound Enhancement Systems/Exterior Sound Generator requirements
R51/R138-11-01
R51/R138-11-01 2025-06-20
5 June Key points on exterior sound enhancement testing requirements
R51/R138-10-02
R51/R138-10-02 2025-06-05
5 June R51/R138: Agenda for the 10th (June 2025) session
R51/R138-10-01
R51/R138-10-01 2025-06-05
4 June UN R138: Structuring proposal for 03 series (OICA)
R51/R138-09-02
R51/R138-09-02 2025-06-04