This license allows a person to install an underground tank system which is to hold flammable or combustible liquids. Wisconsin Statutes: Storage of flammable, combustible and hazardous liquids (S. 101.09 Section 3) Administrative Rules/Codes: Underground tank system installers (Comm 5.85) No person may install an underground tank system that is regulated under ch. Comm 10 unless: (a) The person holds a certification issued by the department as a certified underground tank system installer; or (b) The person is under the direct supervision of another person who holds a certification issued by the department as a certified underground tank system installer.
