For the purposes of this chapter—

((1)) “alluvial valley floors” means the unconsolidated stream laid deposits holding streams where water availability is sufficient for subirrigation or flood irrigation agricultural activities but does not include upland areas which are generally overlain by a thin veneer of colluvial deposits composed chiefly of debris from sheet erosion, deposits by unconcentrated runoff or slope wash, together with talus, other mass movement accumulation and windblown deposits;

((2)) “approximate original contour” means that surface configuration achieved by backfilling and grading of the mined area so that the reclaimed area, including any terracing or access roads, closely resembles the general surface configuration of the land prior to mining and blends into and complements the drainage pattern of the surrounding terrain, with all highwalls and spoil piles eliminated; water impoundments may be permitted where the regulatory authority determines that they are in compliance with ;

((3)) “commerce” means trade, traffic, commerce, transportation, transmission, or communication among the several States, or between a State and any other place outside thereof, or between points in the same State which directly or indirectly affect interstate commerce;

((4)) “Federal lands” means any land, including mineral interests, owned by the United States without regard to how the United States acquired ownership of the land and without regard to the agency having responsibility for management thereof, except Indian lands: , That for the purposes of this chapter lands or mineral interests east of the one hundredth meridian west longitude owned by the United States and entrusted to or managed by the Tennessee Valley Authority shall not be subject to sections 1304 (Surface Owner Protection) and 1305 (Federal Lessee Protection) of this title.

((5)) “Federal lands program” means a program established by the Secretary pursuant to to regulate surface coal mining and reclamation operations on Federal lands;

((6)) “Federal program” means a program established by the Secretary pursuant to to regulate surface coal mining and reclamation operations on lands within a State in accordance with the requirements of this chapter;

((7)) “fund” means the Abandoned Mine Reclamation Fund established pursuant to ;

((8)) “imminent danger to the health and safety of the public” means the existence of any condition or practice, or any violation of a permit or other requirement of this chapter in a surface coal mining and reclamation operation, which condition, practice, or violation could reasonably be expected to cause substantial physical harm to persons outside the permit area before such condition, practice, or violation can be abated. A reasonable expectation of death or serious injury before abatement exists if a rational person, subjected to the same conditions or practices giving rise to the peril, would not expose himself or herself to the danger during the time necessary for abatement;

((9)) “Indian lands” means all lands, including mineral interests, within the exterior boundaries of any Federal Indian reservation, notwithstanding the issuance of any patent, and including rights-of-way, and all lands including mineral interests held in trust for or supervised by an Indian tribe;

((10)) “Indian tribe” means any Indian tribe, band, group, or community having a governing body recognized by the Secretary;

((11)) “lands within any State” or “lands within such State” means all lands within a State other than Federal lands and Indian lands;

((12)) “Office” means the Office of Surface Mining Reclamation and Enforcement established pursuant to subchapter II;

((13)) “operator” means any person, partnership, or corporation engaged in coal mining who removes or intends to remove more than two hundred and fifty tons of coal from the earth by coal mining within twelve consecutive calendar months in any one location;

((14)) “other minerals” means clay, stone, sand, gravel, metalliferous and nonmetalliferous ores, and any other solid material or substances of commercial value excavated in solid form from natural deposits on or in the earth, exclusive of coal and those minerals which occur naturally in liquid or gaseous form;

((15)) “permit” means a permit to conduct surface coal mining and reclamation operations issued by the State regulatory authority pursuant to a State program or by the Secretary pursuant to a Federal program;

((16)) “permit applicant” or “applicant” means a person applying for a permit;

((17)) “permit area” means the area of land indicated on the approved map submitted by the operator with his application, which area of land shall be covered by the operator’s bond as required by and shall be readily identifiable by appropriate markers on the site;

((18)) “permittee” means a person holding a permit;

((19)) “person” means an individual, partnership, association, society, joint stock company, firm, company, corporation, or other business organization;

((20)) the term “prime farmland” shall have the same meaning as that previously prescribed by the Secretary of Agriculture on the basis of such factors as moisture availability, temperature regime, chemical balance, permeability, surface layer composition, susceptibility to flooding, and erosion characteristics, and which historically have been used for intensive agricultural purposes, and as published in the Federal Register.

((21)) “reclamation plan” means a plan submitted by an applicant for a permit under a State program or Federal program which sets forth a plan for reclamation of the proposed surface coal mining operations pursuant to ;

((22)) “regulatory authority” means the State regulatory authority where the State is administering this chapter under an approved State program or the Secretary where the Secretary is administering this chapter under a Federal program;

((23)) “Secretary” means the Secretary of the Interior, except where otherwise described;

((24)) “State” means a State of the United States, the District of Columbia, the Commonwealth of Puerto Rico, the Virgin Islands, American Samoa, and Guam;

((25)) “State program” means a program established by a State pursuant to to regulate surface coal mining and reclamation operations, on lands within such State in accord with the requirements of this chapter and regulations issued by the Secretary pursuant to this chapter;

((26)) “State regulatory authority” means the department or agency in each State which has primary responsibility at the State level for administering this chapter;

((27)) “surface coal mining and reclamation operations” means surface mining operations and all activities necessary and incident to the reclamation of such operations after ;

((28)) “surface coal mining operations” means—

((A)) activities conducted on the surface of lands in connection with a surface coal mine or subject to the requirements of surface operations and surface impacts incident to an underground coal mine, the products of which enter commerce or the operations of which directly or indirectly affect interstate commerce. Such activities include excavation for the purpose of obtaining coal including such common methods as contour, strip, auger, mountaintop removal, box cut, open pit, and area mining, the uses of explosives and blasting, and in situ distillation or retorting, leaching or other chemical or physical processing, and the cleaning, concentrating, or other processing or preparation, loading of coal for interstate commerce at or near the mine site: , That such activities do not include the extraction of coal incidental to the extraction of other minerals where coal does not exceed 16⅔ per centum of the tonnage of minerals removed for purposes of commercial use or sale or coal explorations subject to ; and

((B)) the areas upon which such activities occur or where such activities disturb the natural land surface. Such areas shall also include any adjacent land the use of which is incidental to any such activities, all lands affected by the construction of new roads or the improvement or use of existing roads to gain access to the site of such activities and for haulage, and excavations, workings, impoundments, dams, ventilation shafts, entryways, refuse banks, dumps, stockpiles, overburden piles, spoil banks, culm banks, tailings, holes or depressions, repair areas, storage areas, processing areas, shipping areas and other areas upon which are sited structures, facilities, or other property or materials on the surface, resulting from or incident to such activities; and

((29)) “unwarranted failure to comply” means the failure of a permittee to prevent the occurrence of any violation of his permit or any requirement of this chapter due to indifference, lack of diligence, or lack of reasonable care, or the failure to abate any violation of such permit or the chapter due to indifference, lack of diligence, or lack of reasonable care;

((30)) “lignite coal” means consolidated lignitic coal having less than 8,300 British thermal units per pound, moist and mineral matter free;

((31)) the term “coal laboratory”, as used in subchapter VIII, means a university coal research laboratory established and operated pursuant to a designation made under ;

((32)) the term “institution of higher education” as used in subchapters VIII and IX, means any such institution as defined by section 1001  of title 20;

((33)) the term “unanticipated event or condition” as used in means an event or condition encountered in a remining operation that was not contemplated by the applicable surface coal mining and reclamation permit; and

((34)) the term “lands eligible for remining” means those lands that would otherwise be eligible for expenditures under or under .