(a) General rule.--Two or more local governments in this Commonwealth may jointly cooperate, or any local government may jointly cooperate with any similar entities located in any other state, in the exercise or in the performance of their respective governmental functions, powers or responsibilities.
(b) Joint agreements.--For the purpose of carrying the provisions of this subchapter into effect, the local governments or other entities so cooperating shall enter into any joint agreements as may be deemed appropriate for those purposes.