Comparison of CARB Heavy-Duty Omnibus Regulation (Omnibus) and U.S. Environmental Protection Agency (U.S. EPA) Clean Trucks Plan (CTP) Proposed Options Documents Comparison of CARB Heavy-Duty Omnibus Regulation (Omnibus) and U.S. Environmental Protection Agency (U.S. EPA) Clean Trucks Plan (CTP) Proposed Options CARB_OMNIBUS_VS_US_EPA_CTP_PROPOSAL_FINAL_1.PDF · 203 KB