(a) Fuel, fuel additive, or regulated blendstock that is produced, imported, sold, offered for sale, supplied, offered for supply, stored, dispensed, or transported for use in the following tactical military vehicles, engines, or equipment, including locomotive or marine engines, is exempt from the standards specified in this part:

(1) Tactical military vehicles, engines, or equipment, including locomotive or marine engines, that have an EPA national security exemption from the emission standards in this chapter. See 40 CFR part 85, subpart R, and 40 CFR 1068.225.

(2) Tactical military vehicles, engines, or equipment, including locomotive or marine engines, that are not subject to a national security exemption from vehicle or engine emissions standards specified in paragraph (a)(1) of this section but, for national security purposes (e.g., for purposes of readiness, including training, for deployment overseas), need to be fueled on the same fuel as the vehicles, engines, or equipment that EPA has granted such a national security exemption.

(b) The exempt fuel, fuel additive, or regulated blendstock must meet all the following requirements:

(1) The fuel, fuel additive, or regulated blendstock must be accompanied by PTDs that meet the requirements of subpart L of this part.

(2) The fuel, fuel additive, or regulated blendstock must be segregated from non-exempt fuel, fuel additive, or regulated blendstock at all points in the distribution system.

(3) The fuel, fuel additive, or regulated blendstock must be dispensed from a fuel dispenser stand, fueling truck, or tank that is labeled with the appropriate designation of the exempt fuel, fuel additive, or regulated blendstock.

(4) The fuel, fuel additive, or regulated blendstock must not be used in any vehicles, engines, or equipment, including locomotive or marine engines, other than those specified in paragraph (a) of this section.