CFR›Title 40›Chapter I›Part 610›40 CFR Part 610 Subpart C Citation40 CFR Part 610 Subpart CContainsSections 610.30–610.35CorpusDaily eCFRDisplayed edition2026-06-29Last updated2026-06-29 Subpart C—Test Requirement Criteria Sections 610.30 § 610.30 General. 610.31 § 610.31 Vehicle tests for fuel economy and exhaust emissions. 610.32 § 610.32 Test fleet selection. 610.33 § 610.33 Durability tests. 610.34 § 610.34 Special test conditions. 610.35 § 610.35 Driveability and performance tests. AuthoritySec. 511, Motor Vehicle Information and Cost Savings Act, as amended (sec. 301, Pub. L. 94-163, 89 Stat. 915 (15 U.S.C. 2011)).Source44 FR 17946, Mar. 23, 1979, unless otherwise noted. Previous B Subpart B—Evaluation Criteria for the Preliminary Analysis Next D Subpart D—General Vehicle Test Procedures