Source: https://texreg.sos.state.tx.us/public/readtac$ext.TacPage?sl=R&app=9&p_dir=&p_rloc=&p_tloc=&p_ploc=&pg=1&p_tac=&ti=30&pt=1&ch=115&rl=327
Timestamp: 2019-04-26 12:35:14+00:00

Document:
For all affected persons in Gregg, Nueces, and Victoria Counties, the following exemptions shall apply.
(C) an estimate of the total volatile organic compound (VOC) emissions within the refinery from sources affected by §115.322 of this title (relating to Control Requirements), §115.324 of this title (relating to Inspection Requirements), and §115.326 of this title (relating to Recordkeeping Requirements) after controls are applied and assuming no exemptions for small valves, plus an explanation of how the estimate was derived.
(2) Components which contact a process fluid that contains less than 10% VOC by weight are exempt from the requirements of this division.
(3) Components which contact a process liquid containing a VOC having a true vapor pressure equal to or less than 0.147 pounds per square inch absolute (psia) (1.013 kPa) at 68 degrees Fahrenheit (20 degrees Celsius) are exempt from the requirements of §115.324 of this title if the components are inspected visually according to the inspection schedules specified within this same section.
(4) Petroleum refineries or individual process units in a temporary nonoperating status shall submit a plan for compliance with the provisions of this division, as soon as practicable, but no later than one month before the process unit is scheduled for start-up and be in compliance as soon as practicable, but no later than three months after start-up. All petroleum refineries affected by this section shall notify the executive director of any nonoperating refineries or individual process units when they are shut down and dates of any start-ups as they occur.
(5) Pressure relief devices connected to an operating flare header, components in continuous vacuum service, storage tank valves, and valves that are not externally regulated (such as in-line check valves) are exempt from the monitoring requirement of §115.324 of this title.
(6) Compressors in hydrogen service are exempt from the requirements of §115.324 of this title if the owner or operator demonstrates that the percent hydrogen content can be reasonably expected to always exceed 50% by volume.

References: §115
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