40 CFR 1090.305 - ULSD standards.

Regulations last checked for updates: Nov 22, 2024

Title 40 - Protection of Environment last revised: Nov 20, 2024

§ 1090.305 - ULSD standards.

(a) Overview. Except as specified in § 1090.300(a), diesel fuel must meet the ULSD per-gallon standards of this section.

(b) Sulfur standard. Maximum sulfur content of 15 ppm.

(c) Cetane index or aromatic content. Diesel fuel must meet one of the following standards:

(1) Minimum cetane index of 40.

(2) Maximum aromatic content of 35 volume percent.

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 1090.305