(a) For all affected persons in the Beaumont-Port Arthur, Bexar County, Dallas-Fort Worth, El Paso, and Houston-Galveston-Brazoria areas, compliance with §115.311(a) of this title (relating to Emission Specifications) and §115.312(a) of this title (relating to Control Requirements) shall be determined by applying the following test methods, as appropriate:(1) Test Method 22 (40 Code of Federal Regulations 60, Appendix A) for visual determination of fugitive emissions from material sources and smoke emissions from flares;(2) additional control device requirements for flares described in 40 Code of Federal Regulations §60.18(f);(3) Test Methods 1-4 (40 Code of Federal Regulations 60, Appendix A) for determining flow rate, as necessary;(4) Test Method 18 (40 Code of Federal Regulations 60, Appendix A) for determining gaseous organic compound emissions by gas chromatography;(5) Test Method 25 (40 Code of Federal Regulations 60, Appendix A) for determining gaseous nonmethane organic emissions as carbon;(6) Test Methods 25A or 25B (40 Code of Federal Regulations 60, Appendix A) for determining total gaseous organic concentrations using flame ionization or nondispersive infrared analysis; or(7) minor modifications to these test methods approved by the executive director.(b) For all affected persons in Gregg, Nueces, and Victoria Counties, compliance with §115.311(b) of this title (relating to Emission Specifications) and §115.312(b) of this title (relating to Control Requirements) shall be determined by applying the following test methods, as appropriate:(1) Test Method 22 (40 Code of Federal Regulations 60, Appendix A) for visual determination of fugitive emissions from material sources and smoke emissions from flares;(2) additional control device requirements for flares described in 40 Code of Federal Regulations 60.18(f);(3) Test Methods 1-4 (40 Code of Federal Regulations 60, Appendix A) for determining flow rate, as necessary;(4) Test Method 18 (40 Code of Federal Regulations 60, Appendix A) for determining gaseous organic compound emissions by gas chromatography;(5) Test Method 25 (40 Code of Federal Regulations 60, Appendix A) for determining total gaseous nonmethane organic emissions as carbon;(6) Test Methods 25A or 25B (40 Code of Federal Regulations 60, Appendix A) for determining total gaseous organic concentrations using flame ionization or nondispersive infrared analysis; or(7) minor modifications to these test methods approved by the executive director.