Sec. 125. (a) After notice and opportunity for a public hearing- (1) the Governor of any State in which a major fuel burning stationary source referred to in this subsection (or class or category thereof) is located, (2) the Administrator, or (3) the President (or his designee), may determine that action under subsection (b) is necessary to prevent or minimize significant local or regional economic disruption or unemploy- ment which would otherwise result from use by such source (or class or category) of - (A) coal or coal derivatives other than locally or region- ally available coal, (B) petroleum products, (C) natural gas, or (D) any combination of fuels referred to in subparagraphs (A) through (C), to comply with the requirements of a State implementation plan. (b) Upon a determination under subsection (a) - (1) such Governor, with the written consent of the Presi- dent or his designee, (2) the President's designee with the written consent of such Governor, or (3) the President may by rule or order prohibit any such major fuel burning sta- tionary source (or class or category thereof) from using fuels other than locally or regionally available coal or coal deri- vatives to comply with implementation plan requirements. In taking any action under this subsection, the Governor, the President, or the President's designee as the case may be, shall take into account, the final cost to the consumer of such an action. (c) The Governor, in the case of action under subsection (b)(1), or the Administrator, in the case of an action under subsection (b)(2) or (3) shall, by rule or order, require each source to which such action applies to - (1) enter into long-term contracts of at least ten years in duration (except as the President or his designee may other- wise permit or require by rule or order for good cause) for supplies of regionally available coal or coal derivatives, (2) enter into contracts to acquire any additional means of emission limitation which the Administrator or the State de- termines may be necessary to comply with the requirements of this Act while using such coal or coal derivatives as fuel, and (3) comply with such schedules (including increments of progress), timetables and other requirements as may be neces- sary to assure compliance with the requirements of this Act. Requirements under this subsection shall be established simulta- neously with, and as a condition of, any action under subsection (b). (d) This section applies only to existing or new major fuel burning stationary sources - (1) which have the design capacity to produce 250,000,000 Btu's per hour (or its equivalent), as determined by the Administrator, and (2) which are not in compliance with the requirements of an applicable implementation plan or which are prohibited from burning oil or natural gas, or both, under any other authority of law. (e) Except as may otherwise be provided by rule by the State or the Administrator for good cause, any action required to be taken by a major fuel burning stationary source under this section shall not be deemed to constitute a modification for purposes of section 111(a) (2) and (4) of this Act. (f) For purposes of sections 113 and 120 a prohibition under subsection (b), and a corresponding rule or order under subsection (c), shall be treated as a requirement of section 113. For purpo-ses of any plan (or portion thereof) promulgated under section 110(c), any rule or order under subsection (c) corresponding to a prohibition under subsection (b), shall be treated as a part of such plan. For purposes of section 113, a prohibition under sub-section (b), applicable to any source, and a corresponding rule or order under subsection (c), shall be treated as part of the appli-cable implementation plan for the State in which subject source is located. (g) The President may delegate his authority under this section to an officer or employee of the United States designated by him on a case-by-case basis or in any other manner he deems suitable. (h) For the purpose of this section the term "locally or region-ally available coal or coal derivatives" means coal or coal deri-vatives which is, or can in the judgment of the State or the Ad-ministrator feasibly be, mined or produced in the local or re-gional area (as determined by the Administrator) in which the major fuel burning stationary source is located. [42 U.S.C. 7425]