CFR›Title 40›Chapter I›Part 610›40 CFR Part 610 Subpart E Citation40 CFR Part 610 Subpart EContainsSections 610.50–610.52CorpusDaily eCFRDisplayed edition2026-06-29Last updated2026-06-29 Subpart E—Durability Test Procedures Sections 610.50 § 610.50 Test configurations. 610.51 § 610.51 Mileage accumulation procedure. 610.52 § 610.52 Maintenance. 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 D Subpart D—General Vehicle Test Procedures Next F Subpart F—Special Test Procedures