Colorado Revised Statutes Title 25. Health § 25-7-105.1. Federal enforceability

(1) To the extent that any provision of this article or any standard or regulation promulgated pursuant thereto is not required by Part C (prevention of significant deterioration), Part D (nonattainment), or Title V (minimum elements of a permit program) of the federal act, or is not required by section 111 of the federal act, or is not required for sources to participate in the early reduction program of section 112 of the federal act, or is not required for sources to be excluded as a major source under this article, or is otherwise more stringent than other requirements of the federal act, such provision, standard, or regulation is hereby declared to be adopted under powers reserved to the state of Colorado pursuant to section 116 of the federal act. Any such provision, standard, or regulation adopted exclusively under state authority shall not constitute part of the state implementation plan.

(2) Whenever the division or commission grants relief to an owner or operator of a new or modified stationary source from that part of a state standard or regulation which is not required by Part C (prevention of significant deterioration), Part D (nonattainment), or Title V (minimum elements of a permit program) of the federal act, or is not required by section 111 of the federal act, or is not required for sources to participate in the early reduction program of section 112 of the federal act, or is not required for sources to be excluded as a major source under this article, or which is otherwise more stringent than other requirements of the federal act and is not included as part of the state implementation plan, such relief shall be governed exclusively by the laws of this state and the regulations of the commission.

(3) To the extent any term or condition contained in any permit issued pursuant to this article is not required by Part C (prevention of significant deterioration), Part D (nonattainment), or Title V (minimum elements of a permit program) of the federal act, or is not required by section 111 of the federal act, or is not required for sources to participate in the early reduction program of section 112 of the federal act, or is not required for sources to be excluded as a major source under this article, or is otherwise more stringent than other requirements of the federal act, such term or condition shall be subject to enforcement exclusively under the laws of this state and the regulations of the commission.