I am researching how to contract with state and local governmental agencies. FAR subpart 17.5 addresses Interagency Agreement but this refers to Federal Agencies. I have reviewed The Economy Act, 31 U.S.C. 1535 and Office of Federal Procurement Policy guidance, Interagency Acquisitions. None of these talks to my subject topic. Do we treat a State or Local government agency as if these were contractors, using purchase orders to obtain what we require from the agency or do we use interagency agreements? Does anyone have reference sites wih regard tp this topic?