1. Short title This Act may be cited as the Brownfields Enhancement, Economic Redevelopment, and Reauthorization Act of 2017 . 2. Redevelopment certainty for governmental entities Section 101(20)(D) of the Comprehensive Environmental Response, Compensation, and Liability Act of 1980 ( 42 U.S.C. 9601(20)(D) ) is amended by striking ownership or control and all that follows through by virtue and inserting ownership or control through seizure or otherwise in connection with law enforcement activity, or through bankruptcy, tax delinquency, abandonment, or other circumstances in which the government acquires title by virtue . 3. Petroleum brownfield enhancement Section 101(39)(D)(ii)(II) of the Comprehensive Environmental Response, Compensation, and Liability Act of 1980 ( 42 U.S.C. 9601(39)(D)(ii)(II) ) is amended by amending item (bb) to read as follows: (bb) is a site for which there is no viable responsible party and that is determined by the Administrator or the State, as appropriate, to be a site that will be assessed, investigated, or cleaned up by a person that is not potentially liable for cleaning up the site under this Act or any other law pertaining to the cleanup of petroleum products; and . 4. Clarification of leaseholder interest Section 101(40) of the Comprehensive Environmental Response, Compensation, and Liability Act of 1980 ( 42 U.S.C. 9601(40) ) is amended— (1) in the matter preceding subparagraph (A), by striking (or a tenant of a person) that acquires ownership of and inserting who acquires ownership of, or a leasehold interest in, ; (2) in subparagraph (A), by inserting or the leasehold interest in the facility before the period at the end; (3) in subparagraph (B)— (A) in clause (ii), by inserting with respect to a person who acquires ownership of a facility. The Administrator shall establish standards and practices with respect to a person who acquires a leasehold interest in a facility before the period at the end