CFR›Title 40›Chapter I›Part 1036›Subpart D ContainsSection 1036.301CorpusDaily eCFRDisplayed edition2026-10-15Last updated2026-10-15 Subpart D—Testing Production Engines and Hybrid Powertrains Sections 1036.301 § 1036.301 Selective enforcement audits. Previous C Subpart C—Certifying Engine Families Next E Subpart E—In-Use Testing