
Effective January 1, 2011, gasoline generator sets on trailers or any other non-motorized mobile apparatus must have an EVAP generator set, approved tank, EVAP canister, hoses and fittings all meeting the CARB Tier 3 and EPA phase 3 standards and specifications. This law applies in all 50 states.
EPA Requirements for RV Generators Click Here for Onan Slide Presentation