Minn. Stat. § 193.22: JOINT ARMORIES AND MUNICIPAL BUILDINGS.

Whenever a company of the National Guard shall be located in a city wherein no suitable armory has been provided for its use, an armory may be constructed for use jointly by such company or battery and by such city. The mayor or president of the council of such city and the commanding officer of the company or other unit stationed at such place, or if there be more than one company then the senior officer of the troops of such station, shall constitute a joint armory commission, with power to purchase, erect or rent a suitable site or building for such armory and to furnish and keep the same in repair. No new armory shall be purchased, erected, or rented under the provisions of this section from and after May 1, 1943, without the approval of the adjutant general.