(a) The department of human services shall administer all functions to be established in this state under the federal Social Security Act (42 U.S.C. § 301 et seq.), except those functions that may be expressly delegated by either state statute or by federal law to other state departments, offices or agencies.
(b) All federal aid as defined by § 4-4-116(a) received or used by the department must be acquired and used subject to the requirements of § 4-4-116.