45 CFR 205.100 - Single State agency.
(a) State plan requirements. A State plan for financial assistance under title I, IV-A, X, XIV, or XVI (AABD) of the Social Security Act must:
(i) Provide for the establishment or designation of a single State agency with authority to administer or supervise the administration of the plan.
(ii) Include a certification by the attorney general of the State identifying the single State agency and citing the legal authority under which such agency administers, or supervises the administration of, the plan on a statewide basis including the authority to make rules and regulations governing the administration of the plan by such agency or rules and regulations that are binding on the political subdivisions, if the plan is administered by them.
(b) Conditions for implementing the requirements of paragraph (a) of this section. (1) The State agency will not delegate to other than its own officials its authority for exercising administrative discretion in the administration or supervision of the plan including the issuance of policies, rules, and regulations on program matters.
(2) In the event that any rules and regulations or decisions of the single State agency are subject to review, clearance, or other action by other offices or agencies of the State government, the requisite authority of the single State agency will not be impaired.
(3) In the event that any services are performed for the single State agency by other State or local agencies or offices, such agencies and offices must not have authority to review, change, or disapprove any administrative decision of the single State agency, or otherwise substitute their judgment for that of the agency as to the application of policies, rules, and regulations promulgated by the State agency.