(a) Terms and conditions of regulatory orders covering regulated NSR pollutants (as defined in 40 CFR 52.21(b)), issued pursuant to WAC 173-400-091 “Voluntary limits on emissions” and in accordance with the provisions of WAC 173-400-091, WAC 173-400-105 “Records, monitoring, and reporting,” and WAC 173-400-171 “Public involvement,” shall be applicable requirements of the Federally-approved Washington SIP for the purposes of section 113 of the Clean Air Act and shall be enforceable by EPA and by any person in the same manner as other requirements of the SIP. Such regulatory orders issued pursuant to WAC 173-400-091 are part of the Washington SIP and shall be submitted to EPA Region 10 in accordance with the requirements of 40 CFR 51.326. The EPA-approved provisions of the WAC are identified in 40 CFR 52.2470(c).

(b) Terms and conditions of regulatory orders covering hazardous air pollutants (as defined in 40 CFR 63.2), issued pursuant to WAC 173-400-091 “Voluntary limits on emissions,” as in effect on September 20, 1993, and in accordance with the provisions of WAC 173-400-091, WAC 173-400-105 “Records, monitoring, and reporting,” and WAC 173-400-171 “Public involvement,” shall be applicable requirements of the Federally-approved Washington section 112(l) program for the purposes of section 113 of the Clean Air Act and shall be enforceable by EPA and by any person in the same manner as other requirements of section 112.