roposalregardingUNregulation 92 3 WP.29/2025/3 2025/3/5 2025/9/26 Replacement Silencing System (Motor Cycle) ・ Addition of concrete anti-tampering requirements to prevent users  easily modifying replacement mufflers. 1. The structure should be such that if a user modifies the sound volume, irrecoverable damage will occur. 2. The software should be designed to be difficult to tamper with. 22 AgreementregardingUNregulation 100 4 WP.29/2024...

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