Authority of county to require federal and state agencies to follow county policies and procedures 1.  A county lacks authority to require any agency of the United States to follow county policies or procedures in land use decisions or environmental regulation, except where Congress has specifically directed federal agencies to conform to local law.  2.  A county lacks authority to require any agency of the State of Washington to follow county policies or procedures in land use or environmental regulation, except where state law, expressly or by necessary implication, requires state agencies to conform to county procedural or substantive requirements as to a particular agency decision.