97 STAT. 502 PUBLIC LAW 98-89—AUG. 26, 1983 certain distillate fractions may have been removed, and crude oil to which certain distillate fractions may have been added. (8) "crude oil tanker" means a tanker engaged in the trade of carrying crude oil. (9) "discharge", when referring to a substance discharged from a vessel, includes spilling, leaking, pumping, pouring, emitting, emptying, or dumping, however caused. (10) "documented vessel" means a vessel for which a certifi- cate of documentation has been issued under chapter 121 of this Post, p. 584. title. (11) "fisheries" includes planting, cultivating, catching, taking, or harvesting fish, shellfish, marine animals, pearls, shells, or marine vegetation at a place in the fishery conserva- tion zone established by section 101 of the Magnuson Fishery Conservation and Management Act of 1976 (16 U.S.C. 1811). (12) "foreign vessel" means a vessel of foreign registry or operated under the authority of a country except the United States. (13) "freight vessel" means a motor vessel of more than 15 gross tons that carries freight for hire, except an oceanographic research vessel or an offshore supply vessel. (14) "hsizardous material" means a liquid material or sub- stance that is— (A) flammable or combustible; (B) designated a hazardous substance under section 311(b) of the Federal Water Pollution Control Act (33 U.S.C. 1321); or (C) designated a hazardous material under section 104 of the Hazardous Material Transportation Act (49 U.S.C. 1803); (15) "marine environment" means— (A) the navigable waters of the United States and the land and resources in and under those waters; (B) the waters and fishery resources of an area over which the United States asserts exclusive fishery manage- ment authority; (C) the seabed and subsoil of the outer Continental Shelf of the United States, the resources of the Shelf, and the waters superjacent to the Shelf; and (D) the recreational, economic, and scenic values of the waters and resources referred to in subclauses (A)-(C) of this clause. (16) "motor vessel" means a vessel propelled by machinery other than steam. (17) "nautical school vessel" means a vessel operated by or in connection with a nautical school. (18) "oceanographic research vessel" means a vessel that the , Secretary finds is being employed only in instruction in ocean- ography or limnology, or both, or only in oceanographic or limnological research, including those studies about the sea such as seismic, gravity meter, and magnetic exploration and other marine geophysical or geological surveys, atmospheric research, and biological research. (19) "offshore supply vessel" means a motor vessel of more than 15 gross tons but less than 500 gross tons that regularly carries goods, supplies, or equipment in support of exploration,
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