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§ 1090.300 Overview and general requirements.
(a) Diesel fuel is subject to the ULSD standards in § 1090.305, except as follows:
(1) Alternative sulfur standards apply for 500 ppm LM diesel fuel and ECA marine fuel as specified in §§ 1090.320 and 1090.325, respectively.
(2) Exemption provisions apply as specified in subpart G of this part.
(b) Diesel fuel additives must meet the requirements in § 1090.310.
(c) A diesel fuel manufacturer or diesel fuel additive manufacturer must demonstrate compliance with the standards in this subpart by measuring fuel parameters in accordance with subpart N of this part.