No person may install, repair, or close a tank system after July 9, 1990, unless:
A copy of the contractor's current certificate must be at the work location and posted in a conspicuous place. Certified supervisors must have copies of current certificates issued by the agency at the location where they are supervising work.
Owners or operators of an underground storage tank must not allow a storage tank project to be performed on their tank system, except in compliance with subpart 1.
Minn. R. agency 167, ch. 7105, pt. 7105.0030
Statutory Authority: MS s 116.491