CFR›Title 40›Chapter I›Part 85›Subpart Y ContainsSection 85.2401CorpusDaily eCFRDisplayed edition2026-04-15Last updated2026-04-15 Subpart Y—Fees for the Motor Vehicle and Engine Compliance Program Sections 85.2401 § 85.2401 Assessment of fees. Previous X Subpart X—Determination of Model Year for Motor Vehicles and Engines Used in Motor Vehicles Under Section 177 and Part A of Title II of the Clean Air Act