33 CFR §151.73

1. (a)Except as allowed in paragraph (b) of this section, no person may discharge garbage from—
   1. (1)A fixed or floating platform engaged in the exploration, exploitation or associated offshore processing of seabed mineral resources; or
   2. (2)Any ship within 500 meters (1650 feet) of such platforms.
2. (b)Food waste may be discharged into the surrounding waters from a ship or fixed or floating platform regulated by paragraph (a) of this section if—
   1. (1)It is processed with a grinder or comminuter meeting the standards in § 151.75; and
   2. (2)That ship or fixed or floating drilling rig or platform is beyond 12 nautical miles from nearest land.