Code of Federal Regulations Title 27. Alcohol, Tobacco Products and Firearms § 27.21.110 Gasoline, unleaded

Conforms to specifications as established by the American Society for Testing and Materials (ASTM) in the 1980 Annual Book of ASTM Standards, Part 23, page 229, Standard No. D 439–79. Any of the “seasonal and geographical” volatility classes for unleaded gasoline are considered suitable as a denaturant. (For incorporation by reference, see § 21.6(b).)