labor agreement, and (C) all laborers and mechanics employed by any contractor or subcontractor in the construction of such property were paid wages at rates not less than those prevailing on similar construction in the locality as determined by the Secretary of Labor under subchapter IV of chapter 31 of title 40, United States Code (commonly referred to as the “Davis-Bacon Act”). (3) Energy opportunity zone defined The term energy opportunity zone means— (A) any area which is within 120 miles of— (i) a nuclear power plant, or a facility which utilizes coal to generate electricity, which (after the date which is 10 years before the date of the enactment of this section) ceases operation, or (ii) a nuclear power plant which is scheduled to cease operation not later than 6 years after the date of the enactment of this section, and (B) any other area that can reasonably demonstrate how changes in the nuclear or coal economy have resulted (or are anticipated to result) in job losses in such area. (4) Project labor agreement The term project labor agreement means a pre-hire collective bargaining agreement with one or more labor organizations that establishes the terms and conditions of employment for a specific construction project and which is an agreement described in section 8(f) of the National Labor Relations Act ( 26 U.S.C. 158(f) ). . (b) Clerical amendment The table of subchapters for chapter 1 of such Code is amended by inserting before the item relating to subchapter Z the following new item: Subchapter Y—Energy Opportunity Zones . (c) Effective date (1) In general Except as provided in paragraph (2), the amendments made by this section shall apply to property placed in service after the date of the enactment of this Act. (2) Application of progress expenditure rules So much of the amendments made by this section as relate to section 48 of the Internal Revenue Code of 1986 shall apply to periods after the date of the enactment of this Act under rules similar to the rules of section 48(m) of the Internal