The effective date of the final rule is April 29, 2019. The Minnesota Office of the Revisor of Statutes updated the online rule version as of June 6, 2019.
Contacts for rule adoption
Contact your local tank program inspector with questions on implementation: Regional map of tank inspectors (t-u1-21)
In Minnesota, there are about 18,000 regulated underground storage tanks (UST) currently in use. The tanks are regulated by the UST program. UST regulations were first implemented by MPCA in 1988 primarily to prevent releases of petroleum products and hazardous substances from gas stations and other facilities into the environment. The regulations were subsequently amended to address federal language changes.
The underground tank rule is designed to prevent improper design, installation, use, maintenance, and closure of UST systems which includes the tanks, piping, and dispensers. The MPCA identified a need to revise the UST regulations to incorporate U.S. Environmental Protection Agency changes to the UST program as well as to update outdated portions of the regulations due to changes in technology since the 1980s. Program knowledge gained during the last 20 years was used to update and revise the regulations to make targeted changes to improve implementation and prevent UST releases.