Alternative Fuels

Safety, Licensing, Training, and Certification

Alternative Fuels Events

Register Using CERTS, Our Event Registration System

Individuals registering for RRC alternative fuel training, continuing education and exam events should register using the  Certification Exam Registration & Training System or CERTS. The online system allows individuals working in alternative fuels industries to register and pay for a class and/or exam in a single transaction.

List of available exams and qualifications

View Events Center


The following links are PDFs PDF file

To purchase a hard copy of a publication, contact the Railroad Commission of Texas’ Central Records section at or 512-463-6882.

Alternative Fuels ANNOUNCEMENTS

Additional CNG and LNG Certification Online Examinations Available May 1

April 15, 2024

Beginning May 1, 2024, the Railroad Commission of Texas (RRC) is expanding the CNG and LNG certification examinations that are offered online. Prior to May 1, the CNG and LNG examinations available online were only employee-level CNG Transport Driver/Service & Installation and LNG Transport Truck Driver, respectively. Now the examinations include all employee-level and most management-level.

A list of online examinations is available on the RRC website at

CNG Delivery Truck Driver Examination Update

Beginning May 1, the previous CNG examination for Transport Driver, which includes Service and Installation, will no longer be a combined examination in response to a recent amendment to Texas Administrative Code §13.70(c), Examination and Exempt Registration Requirements and Renewals.

The new CNG Delivery Truck Driver examination will qualify an individual to operate a cargo tank, load, and unload CNG and connect and disconnect transfer hoses and operate a cylinder delivery unit.

Individuals will need to take a separate Service and Installation Technician examination to qualify them to perform all CNG activities related to stationary CNG systems, including CNG containers, piping, and equipment. Please note that the Service and Installation examination does not authorize an individual to fill containers or operate a CNG transport.

If you have questions, contact the RRC’s Alternative Fuels Training Center at or 512-463-2682.

View Our Announcements


Alternative Fuels

Printable Overview

What we do

The Oversight and Safety Division has responsibility for Alternative Fuels, Gas Services and Pipeline Safety. This reorganization in January 2015 will bring even greater efficiency and consistency to these operations within the Commission, allowing the agency to better serve the state.

The Railroad Commission of Texas (Commission) is the state agency responsible for regulating the safe storage, transportation and use of Liquefied Petroleum Gas (LPG, Propane, Butane), Compressed Natural Gas (CNG), and Liquefied Natural Gas (LNG), pursuant to the Texas Natural Resources Code (TNRC). The Commission has also adopted regulations for each fuel type under the Texas Administrative Code, Title 16, Chapters 9, 13, and 14, respectively.

The Alternative Fuels Safety (AFS) department enforces both the state statutes and the Commission’s regulations on these fuels, by conducting safety evaluations of stationary facilities and mobile equipment, licensing companies engaged in alternative fuel activities, and providing training to individuals working in the alternative fuels industries.