Tenn. Code Ann. § 58-4-207

Each municipality and county of the state acting under §§ 58-4-206 — 58-4-208 is expressly authorized to cooperate with the federal government or any other governmental agencies in the planning, erecting and financing of any memorial hereunder, and is authorized to receive from such governmental agencies, pursuant to any plan of cooperation with such governmental agencies gifts, bounties or grants-in-aid of any character to supplement or entirely finance the cost of any project undertaken pursuant to §§ 58-4-206 — 58-4-208.