Explore the map
- UST program agency verified in our research
- Dispenser rules verified; the UST program agency is not verified in our research
- Not verified in our research
State boundaries: U.S. Census Bureau, 2024 Cartographic Boundary Files. Boundaries are generalized for small-scale display and show no legal boundary. The map covers the 50 states and the District of Columbia.
How the map reads a state
Underground storage tanks, or USTs, answer to a state agency in most states. Under 40 CFR Part 282, an approved state program operates in lieu of the federal one [1]. EPA keeps the list of states with approved UST programs and the Federal Register notice behind each approval [1]. The map shades a state when our research verified the agency that runs its program from the agency's own page or rule, and the title of the state names the agency as that page names it. Texas reads TCEQ PST Program, the program behind 30 TAC Ch. 334, and the same row notes the financial assurance rule at 30 TAC Ch. 37 Subch. I [2]. Georgia reads EPD UST Management Program, under Ga. Comp. R. and Regs. 391-3-15 [3], and Tennessee reads TDEC Division of USTs, under Tenn. Comp. R. and Regs. 0400-18-01 [4].
A state whose own dispenser rules our research verified, but not its agency, is hatched, and its title says the agency is not verified in our research. Virginia and New Hampshire are the two. Every other state reads not verified in our research. The filter picks out the states with a verified agency and the states with verified dispenser rules. Point at a state, or move to it with the keyboard, and the panel beside the map lists each row with its rule and source. The gas station site plan page shows where the tank field, the fill points and the dispensers sit on a fuel site.
The agencies on the map
The agency sits in a different department from state to state, and the map names each one as its own page or rule does. Environmental agencies run most of the programs the map shows: ADEM in Alabama, under Ala. Admin. Code 335-6-15 and 335-6-16 [5]; the Division of Environmental Quality in Arkansas [6]; the DEQ Division of Waste Management, UST Section, in North Carolina [7]; DEP in Pennsylvania, under 25 Pa. Code Ch. 245 [8]; and the EEC Division of Waste Management, UST Branch, in Kentucky, under 401 KAR 42:020 [9]. The Georgia gas station site plan and Texas gas station site plan pages carry two of these programs into a real approval path.
Elsewhere the program sits with fire safety or with labor. Colorado's agency is the CDLE Division of Oil and Public Safety, under 7 CCR 1101-14, revised effective Jan. 1, 2025 [10]. Michigan's is the LARA Bureau of Fire Services, Storage Tank Division [11], and Nebraska's is the State Fire Marshal [12]. The rest of the verified agencies are Indiana's IDEM Office of Land Quality [13], Iowa's DNR UST Section [14], Missouri's DNR [15], Rhode Island's DEM [16], South Carolina's Department of Environmental Services [17], Utah's DEQ ERR [18] and Vermont's DEC [19]. Utah's row names DEQ ERR, the Division of Environmental Response and Remediation, from its certificate of compliance page [18]. The rule each row cites sits beside the agency in the panel. Missouri's program runs under RSMo 319.100 to 319.139 [15], South Carolina's under S.C. Code 44-2, the SUPERB act, and R.61-98 [17], and Michigan's under NREPA Part 211 and the Michigan UST Rules [11]. Rhode Island's row cites the rules adopted under RIGL 42-17.1, 46-12 and 46-13 [16], and North Carolina's cites 15A NCAC 02P for the fund [7]. The Gwinnett County gas station and c-store case study is a model project under the Georgia program.
Dispenser rules in Virginia and New Hampshire
Virginia's fire code carries the state's text of IFC Chapter 23, Motor Fuel-Dispensing Facilities and Repair Garages [20]. Its section 13VAC5-52-280 sets dispensing at least 10 ft from adjoining buildable lot lines and 5 ft from building openings [20]. It prohibits smoking and open flames within 20 ft of dispensers, and it puts dispensers within 10 ft of vehicle traffic on a 6 in concrete island unless Section 312 protection is provided [20]. Vapor processing equipment stays 10 ft from buildings or buildable lot lines and 20 ft from dispensers [20]. The Virginia state page sets these distances inside the state's site plan review.
New Hampshire applies NFPA 30A as adopted in its 2021 edition: the emergency shutoff not less than 20 ft nor more than 100 ft from dispensers, with an added device per island group, and 75 ft maximum travel to an extinguisher [21]. These rows are each state's own adopted text, so the map lists them under the state [20, 21]. The model codes they draw on bind elsewhere only where a state or a city has adopted them, which is why the map shows no model-code distance as a state's rule. The New Hampshire state page covers the local approval that sits on top.
The rules by state
Our research verified the UST program agency of 18 states, and other rows, without it, for New Hampshire and Virginia; each row is cited to the document it comes from. The other 30 states and the District of Columbia are marked not verified in our research, and none of them is shaded, counted or labelled from a withheld row. Rules as researched on October 11, 2026.
| State | On the map | Verified rows, each cited | Not verified in our research |
|---|---|---|---|
| Alabama | UST program agency verified in our research UST program agency verified | ||
| Alaska | Not verified in our research | Not verified in our research | UST program agency |
| Arizona | Not verified in our research | Not verified in our research | UST program agency |
| Arkansas | UST program agency verified in our research UST program agency verified | UST program agency Division of Environmental Quality[6] | |
| California | Not verified in our research | Not verified in our research | UST program agency |
| Colorado | UST program agency verified in our research UST program agency verified | ||
| Connecticut | Not verified in our research | Not verified in our research | UST program agency |
| Delaware | Not verified in our research | Not verified in our research | UST program agency |
| District of Columbia | Not verified in our research | Not verified in our research | UST program agency |
| Florida | Not verified in our research | Not verified in our research | UST program agency |
| Georgia | UST program agency verified in our research UST program agency verified | ||
| Hawaii | Not verified in our research | Not verified in our research | UST program agency |
| Idaho | Not verified in our research | Not verified in our research | UST program agency |
| Illinois | Not verified in our research | Not verified in our research | UST program agency |
| Indiana | UST program agency verified in our research UST program agency verified | UST program agency IDEM Office of Land Quality[13] | |
| Iowa | UST program agency verified in our research UST program agency verified | UST program agency DNR UST Section[14] | |
| Kansas | Not verified in our research | Not verified in our research | UST program agency |
| Kentucky | UST program agency verified in our research UST program agency verified | ||
| Louisiana | Not verified in our research | Not verified in our research | UST program agency |
| Maine | Not verified in our research | Not verified in our research | UST program agency |
| Maryland | Not verified in our research | Not verified in our research | UST program agency |
| Massachusetts | Not verified in our research | Not verified in our research | UST program agency |
| Michigan | UST program agency verified in our research UST program agency verified | UST program agency LARA Bureau of Fire Services, Storage Tank Division[11] NREPA Part 211; Michigan UST Rules | |
| Minnesota | Not verified in our research | Not verified in our research | UST program agency |
| Mississippi | Not verified in our research | Not verified in our research | UST program agency |
| Missouri | UST program agency verified in our research UST program agency verified | ||
| Montana | Not verified in our research | Not verified in our research | UST program agency |
| Nebraska | UST program agency verified in our research UST program agency verified | UST program agency State Fire Marshal (State Fire Marshal for tank permits, registration and inspection; the state environmental agency handles the remedial action fund (agency name per the ST-NE correction))[12] | |
| Nevada | Not verified in our research | Not verified in our research | UST program agency |
| New Hampshire | Dispenser rules verified; the UST program agency is not verified in our research State dispenser separation or dispenser rules verified | Separation 20 ft (minimum) (emergency shutoff not less than 20 ft nor more than 100 ft from dispensers, plus an added device per island group)[21] NFPA 30A §6.7 (2021, as adopted in NH) Separation 100 ft (maximum) (emergency shutoff not less than 20 ft nor more than 100 ft from dispensers)[21] NFPA 30A §6.7 (2021, as adopted in NH) | UST program agency |
| New Jersey | Not verified in our research | Not verified in our research | UST program agency |
| New Mexico | Not verified in our research | Not verified in our research | UST program agency |
| New York | Not verified in our research | Not verified in our research | UST program agency |
| North Carolina | UST program agency verified in our research UST program agency verified | Separation | |
| North Dakota | Not verified in our research | Not verified in our research | UST program agency |
| Ohio | Not verified in our research | Not verified in our research | UST program agency |
| Oklahoma | Not verified in our research | Not verified in our research | UST program agency |
| Oregon | Not verified in our research | Not verified in our research | UST program agency |
| Pennsylvania | UST program agency verified in our research UST program agency verified | ||
| Rhode Island | UST program agency verified in our research UST program agency verified | ||
| South Carolina | UST program agency verified in our research UST program agency verified | ||
| South Dakota | Not verified in our research | Not verified in our research | UST program agency |
| Tennessee | UST program agency verified in our research UST program agency verified | ||
| Texas | UST program agency verified in our research UST program agency verified | ||
| Utah | UST program agency verified in our research UST program agency verified | UST program agency DEQ ERR[18] | |
| Vermont | UST program agency verified in our research UST program agency verified | ||
| Virginia | Dispenser rules verified; the UST program agency is not verified in our research State dispenser separation or dispenser rules verified | Separation 10 ft (minimum) (from adjoining buildable lot lines)[20] 13VAC5-52-280 (IFC Ch. 23 as amended in Virginia) Separation 5 ft (minimum) (from building openings)[20] 13VAC5-52-280 (IFC Ch. 23 as amended in Virginia) Separation 20 ft (smoking and open flames prohibited within 20 ft of dispensers)[20] IFC 2305.4 (Virginia text) Separation 10 ft (vapor processing equipment from buildings or buildable lot lines)[20] IFC 2306 (as amended in Virginia) Dispensers 6 in concrete island (dispensers within 10 ft of vehicle traffic, unless Section 312 protection is provided)[20] 13VAC5-52-280 | UST program agency |
| Washington | Not verified in our research | Not verified in our research | UST program agency |
| West Virginia | Not verified in our research | Not verified in our research | UST program agency |
| Wisconsin | Not verified in our research | Not verified in our research | UST program agency |
| Wyoming | Not verified in our research | Not verified in our research | UST program agency |
States not verified in our research
- Alaska
- Arizona
- California
- Connecticut
- Delaware
- District of Columbia
- Florida
- Hawaii
- Idaho
- Illinois
- Kansas
- Louisiana
- Maine
- Maryland
- Massachusetts
- Minnesota
- Mississippi
- Montana
- Nevada
- New Jersey
- New Mexico
- New York
- North Dakota
- Ohio
- Oklahoma
- Oregon
- South Dakota
- Washington
- West Virginia
- Wisconsin
- Wyoming
Embed the map
The map can be framed on another site. The frame shows the map, the state table with its sources and the research date, and links back to this page.
Worked examples
Computed by the map's own engine from the rows above when this page was built: the reading of one state, as the map, its title and the details panel give it.
- State
- TX,
- On the map
- Filter
- Title of the state on the map
- State
- VA,
- On the map
- Filter
- Title of the state on the map
- Not verified in our research
What the map leaves out
An agency is shaded only where our research verified it from the agency's own page or rule. For the other states the research holds the agency from a summary list only, from secondary sources, from a page whose opened text did not match the row, or not at all, so the map reads not verified in our research and names the row without a value. Fees, installer certification and the state funds are not on the map for any state: they sit outside its rows, and most were not verified in our research.
County and city rules sit on top of the state program, and they are not on the map. Prince George's County, Maryland, allows a gas station by special exception under Zoning Sec. 27-358(a), with the nearest pump 300 ft from any lot with a school, outdoor playground, library, hospital or residence [22]. Phoenix's Zoning Ordinance §623 keeps tractor-trailer stacking and loading docks at least 60 ft from residential zoning [23]. The gas station site calculator shows that county row and the Virginia and New Hampshire rows beside the trips and the delivery truck of a program, and the car wash and gas station regulations by state guide sets each state's tank program beside its fire code.
An agency can move a program between departments, and a state can adopt a new fire code edition. The map reads every row as researched in October 2026, and the agency should be confirmed with the state before a truck stop site plan or a fuel site plan fixes the tank field.
Frequently asked questions
Who regulates underground storage tanks in Texas?
What does EPA approval of a state program mean?
Under 40 CFR Part 282, an approved state program operates in lieu of the federal one [1]. The map names the state agency that runs the program, not the approval status.
Which states put the tank program under fire safety?
Are the dispenser separations the same in every state?
No. Virginia's fire code sets dispensing at least 10 ft from adjoining buildable lot lines and 5 ft from building openings [20]. New Hampshire, under NFPA 30A as adopted in its 2021 edition, puts the emergency shutoff not less than 20 ft nor more than 100 ft from dispensers [21]. Most states on the map show no state dispenser rule of their own in our research.
Who runs the tank programs in Georgia, Alabama and Pennsylvania?
What does Virginia require for dispensers near traffic?
Why is a state with tank rules not shaded?
A state is shaded only where our research verified its agency from the agency's own page or rule. Where the research holds the agency from a summary list only, or not at all, the state reads not verified in our research, and the agency should be confirmed with the state before a tank field is laid out.
Sources
- 1)List of States With Approved UST Programs and Respective Federal Register Notices, U.S. Environmental Protection Agency. Accessed 2026-10-09.
- 2)Petroleum storage tanks: am I regulated?, Texas Commission on Environmental Quality. Accessed 2026-10-10.
- 3)UST facility owners, Georgia Environmental Protection Division. Accessed 2026-10-10.
- 4)Notification and Fees, Tennessee Department of Environment and Conservation. Accessed 2026-10-10.
- 5)Alabama Underground and Aboveground Storage Tank Trust Fund guidance (February 2024), Alabama Department of Environmental Management. Accessed 2026-10-10.
- 6)Registration, Fees, and Financial Assurance, Arkansas Division of Environmental Quality. Accessed 2026-10-10.
- 7)Financial Responsibility Requirements, North Carolina Department of Environmental Quality. Accessed 2026-10-10.
- 8)25 Pa. Code Chapter 245, Administration of the Storage Tank and Spill Prevention Program, Pennsylvania Code and Bulletin. Accessed 2026-10-09.
- 9)Underground Storage Tank Branch, Administrative Services Section, Kentucky Energy and Environment Cabinet. Accessed 2026-10-09.
- 10)Ownership and operation, Colorado Division of Oil and Public Safety. Accessed 2026-10-10.
- 11)Storage Tank Division, Michigan Department of Licensing and Regulatory Affairs, Bureau of Fire Services. Accessed 2026-10-10.
- 12)Underground Storage Tanks, Nebraska State Fire Marshal. Accessed 2026-10-09.
- 13)Financial Responsibility, Storage Tanks, Indiana Department of Environmental Management. Accessed 2026-10-10.
- 14)Underground storage tank registration and fees (updated May 2025), Iowa Department of Natural Resources. Accessed 2026-10-09.
- 15)Underground Storage Tank Financial Responsibility, Missouri Department of Natural Resources. Accessed 2026-10-10.
- 16)DEM Underground Storage Tank Registration, State of Rhode Island. Accessed 2026-10-09.
- 17)Underground storage tank program document, South Carolina Department of Environmental Services. Accessed 2026-10-10.
- 18)Certificate of Compliance for Underground Storage Tanks, Utah Department of Environmental Quality. Accessed 2026-10-09.
- 19)Vermont UST Newsletter, December 2024, Vermont Department of Environmental Conservation. Accessed 2026-10-10.
- 20)13VAC5-52-280, IFC Chapter 23 Motor Fuel-Dispensing Facilities and Repair Garages, Virginia Administrative Code. Accessed 2026-10-10.
- 21)REM-41, additional operating requirements for unattended facilities (2025), New Hampshire Department of Environmental Services. Accessed 2026-10-09.
- 22)Zoning Sec. 27-358, Gas station (special exception), Prince George's County, Maryland. Accessed 2026-10-10.
- 23)Zoning Ordinance Sec. 623, Commercial C-2 District, Intermediate Commercial, City of Phoenix. Accessed 2026-10-09.
Rules as researched on October 11, 2026. Each row of the table carries its own date.
Start a project with these numbers
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