40 CFR 1090.250 - Certified butane standards.

Regulations last checked for updates: May 01, 2025

Title 40 - Protection of Environment last revised: Nov 01, 2025

View all text of Subpart C [§ 1090.200 - § 1090.297]

§ 1090.250 - Certified butane standards.

Butane designated as certified butane under § 1090.1000(e) for use under the butane blending provisions of § 1090.1320(b) must meet the following per-gallon standards:

(a) Butane content. Minimum 85 volume percent.

(b) Benzene content. Maximum 0.03 volume percent.

(d) Chemical composition. Be composed solely of carbon, hydrogen, oxygen, nitrogen, and sulfur.

authority: 42 U.S.C. 7414,7521,7522,7541,7542,7543,7545,7547,7550,and

source: 85 FR 78469, Dec. 4, 2020, unless otherwise noted.

cite as: 40 CFR 1090.250