Fla. Stat. § 376.325
(1) As an alternative to the requirements of s. 376.324, an owner or operator may choose to provide the department with certification by a professional engineer that no aboveground tank at the facility is in direct contact with the ground, and under and around each tank has been placed and sealed to its supports a secondary containment system which is either:
History.--s. 6, ch. 90-98; s. 21, ch. 92-30.