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40 CFR 1090.305

§ 1090.305 ULSD standards.

United States · 40 CFR — Protection of Environment · Status: effective

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40 CFR 1090.305, § 1090.305 ULSD standards, United States, version 1 as recorded 2026-07-09, yourstate.us, https://yourstate.us/provision/196099
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(a) Overview. Except as specified in § 1090.300(a), all diesel fuel (including nonpetroleum diesel fuel) must meet the ULSD per-gallon standards of this section. (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.

Legislative history

This is a federal regulation, adopted through agency rulemaking under the Administrative Procedure Act — not enacted by a recorded vote of Congress.