(a) Local governmental units may provide local services and facilities directly or may contract for the provision of those services by other units of local or state government, by voluntary agencies, or by professionally qualified individuals.
(b) Subject to the approval of the commissioners of the offices having jurisdiction over the services, local governments may arrange for the provision of services eligible for state aid outside their territorial jurisdictions or the state.
(c) Local governments may provide joint local services and facilities through agreements, made pursuant to law, which may provide either that one local government provide and supervise these services for other local governments or that a joint board or a joint local department be established to administer these services for the populations of all contracting local governments.