What kinds of tanks are regulated?
Aboveground pollutant storage tanks (ASTs) with capacity greater than 551 gallons. Underground petroleum and hazardous substance tanks (USTs) with capacity greater than 110 gallons. Residential USTs greater than 1100 gallons (Federal Regulation); otherwise all residential tanks (including but not limited to propane tanks, heating oil tanks, etc.) are exempt from regulation. See section 300 of Chapter 62-761, F.A.C. for applicability and exemptions, and Section 200 for definitions.