Heavy-duty engines intended to be installed in heavy duty vehicles at or below 14,000 pounds GVWR that are subject to standards under this subpart must meet onboard diagnostic requirements as specified in § 86.1806 .
40 C.F.R. §86.007-17
Heavy-duty engines intended to be installed in heavy duty vehicles at or below 14,000 pounds GVWR that are subject to standards under this subpart must meet onboard diagnostic requirements as specified in § 86.1806 .
40 C.F.R. §86.007-17