Idaho AST guide
Aboveground storage tank requirements in Idaho
Idaho petroleum AST projects generally combine the state's 2018 fire code, local fire/city/county requirements, and federal SPCC rather than a single statewide AST permitting office.
Project sequence
Current state fire code: 2018 International Fire Code
The Idaho State Fire Marshal identifies the 2018 International Fire Code as the state's adopted fire code. The State Fire Marshal operates within the Idaho Department of Insurance and works with local fire agencies on fire-code enforcement.
Local jurisdiction matters
Idaho DEQ notes that local fire districts, cities, and counties may have additional AST ordinances or best-management practices. That makes site location an early project input, not an afterthought. Confirm the local fire authority before assuming that a tank accepted in another Idaho jurisdiction will follow the identical permit path.
DEQ's petroleum-AST role is mainly release response
Idaho DEQ states that EPA regulates petroleum ASTs under the federal SPCC rule and that Idaho's UST Program does not regulate petroleum ASTs. DEQ must still be notified within 24 hours of a petroleum or hazardous-substance release under the cited state rules. Hazardous-waste and used-oil tanks can fall into separate DEQ programs.
SPCC is federal and facility-wide
The same federal SPCC test used elsewhere applies in Idaho. The analysis is based on the facility, aggregate oil capacity, and discharge potential, not on whether one individual tank is above a single magic number.
Example: contractor fleet fueling yard
At an Idaho fleet yard, identify the city or county fire authority, dispensing equipment, stored product and access for delivery vehicles before selecting a tank. Keep local fire-code approval, federal SPCC applicability and any DEQ release-response obligations as separate checks; no single tank certification replaces that review.
What to confirm before ordering
- Local fire district, city, or county permit authority
- Tank listing and capacity
- Secondary containment and site drainage
- Setbacks, venting, dispensing, and vehicle protection
- SPCC applicability and any special used-oil or hazardous-material program
What not to assume
- Do not assume Idaho DEQ is the general petroleum-AST permitting office.
- Do not assume one local jurisdiction follows the identical permit path as another.
- Do not overlook separate used-oil or hazardous-material programs when the stored product changes.
Primary sources
- Idaho State Fire Marshal: Statutes, Rules, Codes and Standards
- Idaho DEQ: Storage Tanks
- U.S. EPA: Does SPCC Apply to Your Facility?
Related resources
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