(a) In order to qualify for the exceptions provided by Section 179B of the federal Clean Air Act (42 U.S.C. § 7509a), as added by Section 818 of the federal Clean Air Act Amendments of 1990 (Pub.L. No. 101-549), the commission, in developing rules and control programs to be included in an implementation plan for an international border area, shall ensure that the plan or revision:
(1) meets all requirements applicable to the plan or revision under Title I of the federal Clean Air Act Amendments of 1990 (Pub.L. No. 101-549), other than a requirement that the plan or revision demonstrates attainment and maintenance of the relevant national ambient air quality standards by the attainment date specified by the applicable provision of Title I of the federal Clean Air Act Amendments of 1990 (Pub.L. No. 101-549) or by a regulation adopted under that provision; and
(2) would be adequate to attain and maintain the relevant national ambient air quality standards by the attainment date specified by the applicable provision of Title I of the federal Clean Air Act Amendments of 1990 (Pub.L. No. 101-549) or by a regulation adopted under that provision, but for emissions emanating from outside the United States.
(b) For purposes of any emissions control or permit program adopted or administered by the commission and subject to Subsection (c), the commission, to the extent allowed by federal law, may:
(1) authorize the use of emissions reductions achieved outside the United States to satisfy otherwise applicable emissions reduction requirements if the commission finds that the emissions reductions achieved outside the United States are surplus to requirements imposed by applicable law and are appropriately quantifiable and enforceable; and
(2) allow the use of reductions in emissions of one air contaminant to satisfy otherwise applicable requirements for reductions in emissions of another air contaminant if the commission finds that the air contaminant emissions reductions that will be substituted are of equal or greater significance to the overall air quality of the area affected than reductions in emissions of the other air contaminant.

(c) The commission may authorize or allow substitution of emissions reductions under Subsection (b) only if:
(1) reductions in emissions of one air contaminant for which the area has been designated as nonattainment are substituted for reductions in emissions of another air contaminant for which the area has been designated as nonattainment; or
(2) the commission finds that the substitution will clearly result in greater health benefits for the community as a whole than would reductions in emissions at the original facility.