USA: Amendments to On-Road Motorcycle Emission Standards
The California Air Resources Board (CARB) proposed Amendments to On-Road Motorcycle (ONMC) Emissions Standards and Test Procedures and adoption of new provisions relating to ONMCs.
The Proposal will significantly increase the prevalence of zero-emission motorcycles (ZEMs) in California while also reducing emissions from remaining motorcycles that are powered by internal combustion engines (ICE) by greatly harmonizing with more stringent European Union 5 (Euro 5) exhaust emissions standards, proposing more stringent evaporative emissions standards, and adopting additional on-board diagnostic (OBD) requirements beyond Euro 5. The Proposal is expected to drive the sales of ZEMs to 50% in California by the 2035 model year, thereby reducing greenhouse gas (GHG) and smog forming emissions, while also reducing smog-forming emissions from newer ICE motorcycles.
A hearing about the Proposal will take place on 25 January 2024 and can be accessed HERE.
To find out more about motorcycle regulations in the USA and worldwide, please contact the Institute for Global Automotive Regulatory Research directly.