CFR›Title 40›Chapter I›Part 610›Subpart F ContainsSections 610.60–610.65CorpusDaily eCFRDisplayed edition2026-05-14Last updated2026-05-14 Subpart F—Special Test Procedures Sections 610.60 § 610.60 Non-standard ambient conditions. 610.61 § 610.61 Engine dynamometer tests. 610.62 § 610.62 Driveability tests. 610.63 § 610.63 Performance tests. 610.64 § 610.64 Track test procedures. 610.65 § 610.65 Other test procedures. Previous E Subpart E—Durability Test Procedures