Holiday Office Closure

In observance of the Christmas holidays, Railroad Commission of Texas offices will be closed December 23-27. The offices will re-open at 8 a.m. on Monday, December 30 for regular business. Expedited Drilling Permits will be processed within standard processing times. If assistance is needed, please email Drillingpermits-info@rrc.texas.gov.
RRC maintains a 24-hour emergency phone line to report any leaks or spills. That number is 844-773-0305

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CNG License Categories

Any organization that performs any of the Compressed Natural Gas (CNG) activities described below in Texas is required to be a licensee of the Railroad Commission.


CNG License Categories and Authorized Activities


Category 1.  Container Assembly and Repair of CNG cylinders.  License authorizes the assembly, repair, testing, sale, installation or subframing of CNG cylinders. 

Category 1-A. ASME container assembly and repair. Authorizes the assembly, repair, testing, sale and installation of ASME containers.

Category 1-B. U.S. Department of Transportation (DOT) container assembly and repair. Authorizes the assembly, repair, testing, sale, installation, and subframing, of CNG DOT containers.

Category 2.  General installers and repairmen.  Authorizes the sale, installation, service, or repair of CNG systems, including cylinders. 

Category 3.  Retail and wholesale dealer.  Authorizes the sale, storage, transportation for delivery, or dispensing of CNG for use other than by an ultimate consumer, and the sale, installation, service, or repair of CNG systems as set out in Categories 2, 5, and 6. 

Category 4.  Testing laboratory.  Authorizes the testing of CNG cylinders.

Category 5.  Service station or cylinder exchanger.  Authorizes the operation of a CNG service station, including filling CNG cylinders, or the operation of a cylinder exchange dealership, including filling CNG cylinders, the sale of CNG in cylinders, the sale of CNG cylinders and the replacement of cylinder valves. 

Container Manufacturer Registration. Manufacture, assembly, repair, testing and sale of CNG containers.



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