Coverage

AST permitting guidance, state by state

SPCC applies federally, but fire code adoption, permitting agencies, and siting review vary by state. Select your state below for the specifics that apply to your project.

Every state in this territory enforces the same federal SPCC baseline (40 CFR Part 112) — but how that baseline gets layered with fire code and local permitting varies more than most buyers expect. Some states, like Oregon and North Dakota, route larger tanks through a centralized State Fire Marshal plan review. Others, like Washington and Idaho, leave siting and permitting almost entirely to the local fire district or county, with no blanket state AST registration at all. A few, like South Dakota, regulate ASTs directly by statute, while others, like Wyoming, scope their state AST law narrowly to public fuel dispensing and leave most industrial tanks to OSHA and local fire code. Knowing which pattern applies to your site — before you finalize a tank spec — is the difference between a smooth permit and a costly redesign.

WA

Washington

Dept. of Ecology oversight; Washington State Fire Code adopts NFPA 30/30A; local fire marshal review in most jurisdictions.

View Washington guide →

OR

Oregon

DEQ oversight; Oregon Fire Code (IFC-based, NFPA 30/30A referenced); State Fire Marshal permitting for larger tanks.

View Oregon guide →

ID

Idaho

DEQ does not directly regulate petroleum ASTs — federal SPCC and your local fire district carry the real weight in Idaho.

View Idaho guide →

AK

Alaska

ADEC's direct oversight applies only at 420,000+ gal facilities; mid-size tanks fall to federal SPCC and the State Fire Marshal instead.

View Alaska guide →

MT

Montana

Standalone ASTs with aboveground piping fall to the State Fire Marshal, not DEQ's UST program; agricultural exemption nuances apply.

View Montana guide →

WY

Wyoming

Wyoming's state AST law is scoped to public fuel dispensing — most industrial tanks route through OSHA and local fire code instead.

View Wyoming guide →

ND

North Dakota

Centralized State Fire Marshal plan review for tanks over 660 gal; Bakken-driven demand for multi-tank systems.

View North Dakota guide →

SD

South Dakota

SDCL 34A-2-100 gives South Dakota direct statutory AST regulation — a more hands-on approach than several neighboring states.

View South Dakota guide →

FAQ

Frequently Asked Questions