Aboveground storage tanks storing Class I and Class II liquids at a fleet or commercial facility must be limited to a maximum capacity of 20,000 gal. (76,000 L) and an aggregate capacity of 80,000 gal. (304,000 L). Local jurisdictions may have more stringent regulations.

Added at 17 Ok Reg 2875, eff 7-15-00

Amended at 21 Ok Reg 2079, eff 7-1-04