On-Road Vehicle and Engine Emission Regulations

13 Subject to section 19, a complete heavy-duty vehicle of the 2005 or later model year, other than a medium-duty passenger vehicle, shall

• (a) conform to the exhaust and evaporative emission standards applicable to complete heavy-duty vehicles of that model year set out in section 1816, subpart S, of the CFR;

• (b) be equipped with an on-board diagnostic system that conforms to the standards applicable to vehicles of that model year set out in section 1806, subpart S, of the CFR; and

• (c) not release any crankcase emissions.