SPCC rules apply to facilities that:

• Store more than 1,320 gallons of oil in aboveground containers


• Store more than 42,000 gallons in underground tanks (not subject to other regulations)


• Have a reasonable expectation of a discharge to navigable waters or adjoining shorelines

SPCC plans must describe containment and diversionary structures such as:

• Dikes, berms, or retaining walls


• Sumps or collection systems


• Double-walled tanks or vaults


• Stormwater drain covers and spill kits for mobile refuelers

Tier I and Tier II SPCC Plans follow simplified formats available from the EPA:

• Tier I: For facilities with <10,000 gallons total oil storage and no single tank >5,000 gallons. Template form allows direct self-certification.


• Tier II: Allows self-certification even with individual tanks >5,000 gallons, as long as total remains <10,000 gallons.

We can help populate and document your Tier I/II template with accurate site info, diagrams, and inspection logs.