Select your state for permit thresholds, state agency contact, typical fees, county-level notes, and key rules that differ from national standards.
Every state guide covers: who issues permits in that state, the state licensing agency for LP gas contractors, typical permit fee ranges, and state-specific rules (flood zones, well setbacks, frost line depths) that go beyond national NFPA 58 minimums. The most common threshold for above-ground permit requirements is 125 gallons — but this varies. Underground tanks always require a permit regardless of state.
Don't see your state? Our general permit basics guide and setback requirements guide apply to all U.S. jurisdictions. More states will be added.