All armories constructed with the use of federal funds under the provisions of this act shall be the property of the state of Idaho, and the adjutant general shall by regulation prescribe minimum standards for their maintenance, operation, and use. The adjutant general is authorized to permit use of such armories by public and private persons and organizations under such leases or other agreements as he shall deem appropriate, provided such use does not interfere with their use for the administration and training of the Idaho National Guard or conflict with the provisions of the Federal Act and regulations thereunder; provided, that any armory constructed with the use of Federal funds under the provisions of the Armory and Emergency Relief Facilities Act shall be jointly owned by the state of Idaho and the city or village, city or village and county, and county participating thereunder.