Tenn. Code Ann. § 71-1-114

In the event that the federal government increases the percentages of funds to be furnished by it that may be matched by the state and used in connection with chapters 2-4 of this title, providing assistance to aged persons, aid to dependent children, or any successor program, and aid to the needy blind, the department is authorized to conform to the provisions of federal acts relating to the matching of administrative expense in a higher ratio than provided in such acts and to conform to the provisions for a higher ratio of matching of funds for assistance purposes. The department is further authorized to use any funds granted by the federal government in connection with such programs for the purpose for which they are granted and subject to the limitations or conditions contained in such grants.