Controlling NOx Emissions from Engines in East Texas
Rules in Title 30, Texas Administrative Code, Chapter 117 for controlling emissions of nitrogen oxides from internal combustion engines in east Texas. These rules are part of the State Implementation Plan strategy to meet the National Ambient Air Quality Standards for ozone.
Areas Affected
- Northeast Texas area (Gregg, Harrison, Rusk, Smith, and Upshur counties)
Other Counties:
- Anderson County
- Brazos County
- Burleson County
- Camp County
- Cass County
- Cherokee County
- Franklin County
- Freestone County
- Grimes County
- Henderson County
- Hill County
- Hopkins County
- Hunt County
- Lee County
- Leon County
- Limestone County
- Madison County
- Marion County
- Morris County
- Nacogdoches County
- Navarro County
- Panola County
- Rains County
- Robertson County
- Shelby County
- Titus County
- Van Zandt County
- Wood County
Rule Citation
30 TAC Chapter 117, Subchapter E, Division 4
Rule Description
- Limit NOx emissions from stationary gas-fired reciprocating internal combustion engines.
- Monitoring, reporting, recordkeeping, and testing requirements may apply depending on the size (horsepower) of the engine.
Rule History
The Chapter 117 rule history for East Texas engines gives information on revisions to the rules, including the rule proposal and adoption, the associated state implementation plan revision, and the U.S. Environmental Protection Agency approval of the rules.
Compliance Resources
- The Decision Support System can help you determine if you are subject to the Chapter 117 east Texas combustion rules.
- TexasEnviroHelp: Small Business and Local Government Assistance
- American Society for Testing and Materials (ASTM) Standards
- EPA Test Methods
- EPA Performance Specifications and Other Monitoring Information for Continuous Emission Monitoring Systems
- Predictive Emission Monitoring Systems Protocol referenced in 30 TAC 117.8100(b)
Related Information
- Stakeholder groups that help the agency with air quality issues
- State Implementation Plan: Air Pollution from Ozone
- Emissions Banking and Trading Programs
- Air Permits and Registrations
- Tax Relief for Pollution Control Property
- Point Source Emissions Inventory
Contact Information
- Contact the Stationary Source Programs Team for additional information about stationary source rules.
- Sign up to receive e-mail updates on SIP-related information, including information on stationary source rules. Select SIP Hot Topics under the Air Quality heading.