(a) The testing requirements in this subsection apply in the Beaumont-Port Arthur, Bexar County, Dallas-Fort Worth, Houston-Galveston-Brazoria, and El Paso areas, as defined in §115.10 of this title (relating to Definitions).
  (1) For a vapor control system, other than a vapor recovery unit or a flare, used to comply with the control requirements in §115.112(a)(3) and (e)(3)(A) of this title (relating to Control Requirements), an initial control efficiency test must be conducted in accordance with the approved test methods in §115.117 of this title (relating to Approved Test Methods). If the vapor control system is modified in any way that could reasonably be expected to decrease the control efficiency, the device must be retested within 60 days of the modification.
  (2) A flare used to comply with the control requirements in §115.112(a)(3) and (e)(3)(C) of this title must meet the design verification test requirements in 40 Code of Federal Regulations §60.18(f) (as amended through December 22, 2008 (73 FR 78209)).
(b) The testing requirements in this subsection apply in Gregg, Nueces, and Victoria Counties.
  (1) For a vapor control system, other than a vapor recovery unit or a flare, compliance with the control requirements in §115.112(b) of this title must be demonstrated in accordance with the approved test methods in §115.117 of this title.
  (2) A flare must meet the design verification test requirements in 40 Code of Federal Regulations §60.18(f) (as amended through December 22, 2008 (73 FR 78209)).

Source Note: The provisions of this §115.116 adopted to be effective December 29, 2011, 36 TexReg 8862; amended to be effective May 16, 2024, 49 TexReg 3292