Minn. Stat. § 645.021
A special law as defined in the Minnesota Constitution, article XII, section 2, shall name the local government unit to which it applies. If a special law applies to a group of local government units in a single county or in a number of contiguous counties, it shall be sufficient if the law names the county or counties where the affected units are situated.
A special law shall not be effective without approval of the local government unit or units affected, except as provided in section 645.023. Approval shall be by resolution adopted by a majority vote of all members of the governing body of the unit unless another method of approval is specified by the particular special law.
The chief clerical officer of a local government unit shall, as soon as the unit has approved a special law, file with the secretary of state a certificate stating the essential facts necessary to valid approval, including a copy of the resolution of approval or, if submitted to the voters, the number of votes cast for and against approval at the election. The form of the certificate shall be prescribed by the attorney general and copies shall be furnished by the secretary of state. If a local government unit fails to file a certificate of approval before the first day of the next regular session of the legislature, the law is deemed to be disapproved by such unit unless otherwise provided in the special law.
Laws 1959, chapter 368, does not apply to any special law heretofore enacted, whether or not it has been approved by the local government unit affected, but such unit shall file with the secretary of state a certificate of approval for such law as required in subdivision 3.
Minn. Stat. § 645.021
1959 c 368 s 1,2; 1979 c 176 s 1