Minn. R. 1510.0374
VARIANCES
Upon receipt of a written request, the department shall grant a variance from this rule when the request shows that compliance with this rule would cause unreasonable economic hardship to the requester and that the requested use would not constitute a hazard to people's lives, adjoining property, or the environment. The department shall set forth in writing its reasons for granting or denying a requested variance within 60 days of the request.