; or (ii) a migration or discharge of a hazardous substance, pollutant, or contaminant that would harm human health or the environment. (13) Reservation The term reservation has the meaning given the term Indian country in section 1151 of title 18, United States Code. (14) Responsible owner or operator The term responsible owner or operator means a person that is— (A) (i) legally responsible under section 301 of the Federal Water Pollution Control Act ( 33 U.S.C. 1311 ) for a discharge that originates from an orphan mine site; and (ii) financially able to comply with each requirement described in that section; or (B) (i) a present or past owner or operator or other person that is liable with respect to a release or threat of release of a hazardous substance, pollutant, or contaminant associated with the historic mine residue at or from an orphan mine site under section 104, 106, 107, or 113 of the Comprehensive Environmental Response, Compensation, and Liability Act of 1980 ( 42 U.S.C. 9604 , 9606, 9607, 9613); and (ii) financially able to comply with each requirement described in those sections, as applicable. 3. Scope Nothing in this Act (or an amendment made by this Act)— (1) reduces any existing liability; (2) releases any person from liability, except in compliance with this Act; (3) authorizes the conduct of any mining or processing other than the conduct of any processing of previously mined ores, minerals, wastes, or other materials that is authorized by a Good Samaritan permit; (4) imposes liability on the United States or a Federal land management agency pursuant to section 107 of the Comprehensive Environmental Response, Compensation, and Liability Act of 1980 ( 42 U.S.C. 9607 ) or section 301 of the Federal Water Pollution Control Act ( 33 U.S.C. 1311 )