Minn. Stat. § 148F.06

A license may be voluntarily terminated by the licensee at any time upon written notification to the board, unless a complaint is pending against the licensee. The notification must be received by the board prior to termination of the license for failure to renew. A former licensee may be licensed again only after complying with the relicensure following termination requirements under section 148F.065 . For purposes of this section, the board retains jurisdiction over any licensee whose license has been voluntarily terminated and against whom the board receives a complaint for conduct occurring during the period of licensure.