All state agencies shall coordinate and cooperate with the department in the administration of this part. All state agencies exercising
regulatory authority or management or planning authority in the coastal area shall administer such authority in conformity with the provisions of this part and shall apply such regulatory authority in a manner consistent with the policies of the Georgia coastal management program. All state agencies and local governments exercising statutory authority in the coastal area are authorized to enter into agreements regarding implementation of the Georgia coastal management program within their legal authority.