Fuel storage in Texas is subject to a combination of federal, state, and local regulations that impact how tanks are installed, maintained, and monitored. Whether you're managing diesel for a construction fleet, gasoline for a fuel station, or DEF for an industrial operation, staying compliant in 2025 means keeping up with evolving rules and best practices.
This overview highlights the key regulations affecting fuel storage in Texas and what businesses should know to remain compliant, avoid fines, and operate safely.
Who Regulates Fuel Storage in Texas?
Fuel storage in Texas is governed by multiple agencies, depending on tank type, size, location, and fuel stored. The main authorities include:
- Texas Commission on Environmental Quality (TCEQ)
- Texas Department of Licensing and Regulation (TDLR)
- Environmental Protection Agency (EPA)
- Local fire marshals and municipal authorities
Each agency may enforce different aspects of installation, registration, inspection, and spill response.
Aboveground vs. Underground Storage: Different Rules Apply
Texas differentiates between aboveground storage tanks (ASTs) and underground storage tanks (USTs). Understanding your tank type is the first step to compliance.
Aboveground Storage Tanks (ASTs):
- Must follow NFPA 30 standards for flammable and combustible liquids
- Require secondary containment or spill protection
- Must be registered with the local fire authority in many municipalities
- Subject to Texas Fire Code and local zoning restrictions
Underground Storage Tanks (USTs):
- Regulated by TCEQ in accordance with federal EPA guidelines
- Must be registered and permitted through TCEQ
- Require leak detection systems, corrosion protection, and spill/overfill controls
- Subject to monthly inspections and regular testing
2025 Updates to Be Aware Of
Several regulatory updates and enforcement changes are either underway or recently implemented in Texas. Key areas of focus in 2025 include:
Stricter Inspection Timelines
- UST owners must now complete monthly walkthrough inspections with documentation
- AST facilities near public waterways may face annual spill response audits
Tighter Containment Rules
- ASTs storing diesel or gasoline over 1,100 gallons now require impermeable containment basins in many counties
- Double-wall tanks are being prioritized as a best practice
Enhanced Spill Reporting Protocols
- Any spill of 25 gallons or more must be reported immediately to TCEQ and local authorities
- Facilities must have a written spill response plan on-site
Updated Emergency Shutoff and Venting Requirements
- New installations must include clearly labeled emergency shutoff valves
- ASTs with pump systems require pressure/vacuum vents to prevent overpressurization
Fire-Rated Tank Requirements Expanding
Local fire marshals in high-growth areas like Houston, Dallas, and Austin are increasingly requiring UL-2085 fire-rated tanks for aboveground storage near public facilities
Compliance Tips for Businesses in 2025
Keeping up with fuel regulations in Texas doesn't have to be overwhelming. Here are practical steps to help your operation stay compliant:
- Confirm your tank is properly registered and permitted
- Conduct and log monthly inspections (use checklists when possible)
- Install or maintain spill containment and leak detection systems
- Ensure labels, fill ports, and shutoff valves meet current code markings
- Keep fuel storage areas clean, secure, and accessible for inspections
If unsure about your compliance status, a site assessment from a knowledgeable equipment provider or inspector can save time and reduce liability.
Get Expert Help with Fuel Storage in Texas
Navigating fuel storage regulations in Texas requires both industry experience and up-to-date knowledge. Whether you're installing a new system, upgrading an old tank, or responding to a fire marshal’s inspection, Mills Equipment offers solutions that meet local and federal codes.
From UL-142 and UL-2085 tanks to trailer-mounted systems and spill containment kits, our team can help you choose the right setup for your application—and ship it anywhere in Texas.
Need help staying compliant with Texas fuel storage laws? Call Mills Equipment in Denver at (303) 321-6428 for expert advice and regulation-ready tank systems delivered statewide.