761—132.4 (306D) General requirements.
	 132.4(1) Primary roads, secondary roads and city streets are eligible for designation as scenic byways.
	 132.4(2) A scenic byway should be continuous and at least 20 miles in length. Scenic or heritage features in one form or another should exist along the entire route.
	 132.4(3) Each city and county through which a route passes must approve the scenic byway designation.
	 132.4(4) Signs designating scenic byways shall be paid for and furnished by the department. Each roadway jurisdiction is responsible for installing scenic byway signs on roads under its jurisdiction in accordance with a signing plan provided by the department.