| previous meeting | next meeting |
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20 June
Key points on Exterior Sound Enhancement Systems/Exterior Sound Generator requirements
R51/R138-11-01
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R51/R138-11-01 | 2025-06-20 |
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20 June
Vehicle external sound: Questions to be discussed
R51/R138-11-02
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R51/R138-11-02 | 2025-06-20 |
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20 June
Proposal for Exterior Sound Enhancement System (ESES) requirements (OICA)
R51/R138-11-03
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R51/R138-11-03 | 2025-06-20 |
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24 June
Minutes of the 11th (June 2025) R51/R138 informal subgroup session
R51/R138-11-04
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R51/R138-11-04 | 2025-06-24 |