ACEM confirms adoption of exhaust anti-tampering regulations that the industry itself helped formulate
The Brussels based European Association of Motorcycle Manufacturers (ACEM) says that it welcomes the adoption of the 03 series of amendments to UN Regulation No. 92, introducing new anti-tampering provisions for the non-original replacement exhaust silencing systems for motorcycles.
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Antonio Perlot, ACEM Secretary General |
As reported in the August/September edition of International Dealer News in 2023 (#174), these are the new regulations that ACEM, European motorcycle manufacturers (through IMMA) and selected European aftermarket exhaust manufacturers had the chance to shape this next generation of regulations. The effort was in response to the EU Commission's invitation to the motorcycle industry itself to advise on, and help produce, rules that met the dual requirements of protecting the motorcycle sector (OEM and aftermarket manufacturers as well as consumers) while still meeting the European Union's mandated regulatory policy requirements.
In a March 2025 news release ACEM states that it "acknowledges the concerns of citizens, policymakers and regulators regarding the impact of noise on daily life. Motorcycle sound emissions have been regulated in the EU for decades, with maximum permitted levels defined through European type-approval requirements since the 1990s.
Those stakeholders included LeoVince, Lafranconi, Gianelli, Arrow, MIVV, Akrapovic and SC Project.
On behalf of ACEM, Secretary General Antonio Perlot stated: "The adoption of the new anti-tampering provisions marks an important step in ensuring that motorcycle non-original replacement exhaust systems meet the current regulatory standards.
"This positive step ahead will reinforce measures against excessive noise addressing concerns raised by citizens and policymakers. ACEM remains committed to supporting harmonised implementation, working alongside authorities and industry stakeholders to ensure compliance and preserve responsible motorcycling."
For sound level and anti-tampering rules of motorcycle exhaust silencers, the EU type approval framework Regulation (EU) 168/2013 mandates the application of UNECE Regulations no. 92 (aftermarket silencers) and no. 41 (original motorcycle).
These Regulations were developed and are maintained by the Working Party Noise and Tyres (GRBP), under the World Forum for the harmonisation of vehicle regulations (WP.29), operating within the United Nations Economic Commission for Europe (UNECE).
In September 2024, UNECE GRBP adopted the new requirements during its 80th session and followed by the final adoption at the March 2025 sessions of WP.29 as 03 series of amendments to UN Regulation No. 92.