40 CFR §1090.650

1. (a)Distillate global marine fuel that is produced, imported, sold, offered for sale, supplied, offered for supply, stored, dispensed, or transported for use in steamships or Category 3 marine vessels is exempt from the standards in subpart D of this part when operating outside of ECA boundaries if all the following requirements are met:
   1. (1)The fuel must not exceed 0.50 weight percent sulfur (5,000 ppm).
   2. (2)The fuel must be accompanied by PTDs that meet the requirements of subpart L of this part.
   3. (3)The fuel must be designated as distillate global marine fuel.
   4. (4)The fuel must be segregated from non-exempt fuel at all points in the distribution system.
   5. (5)The fuel must not be used in vehicles, engines, or equipment other than in steamships or Category 3 marine vessels.
2. (b)
   1. (1)Fuel that does not meet the requirements specified in paragraph (a) of this section is subject to the standards, requirements, and prohibitions that apply for ULSD under this part.
   2. (2)Any person who produces, imports, sells, offers for sale, supplies, offers for supply, stores, dispenses, or transports distillate global marine fuel without meeting the applicable recordkeeping requirements of subpart M of this part must not claim the fuel is exempt from the standards, requirements, and prohibitions that apply for ULSD under this part.