Table II-2 of the FHWA Highway Functional Classification Manual shall be used as a general quantitative guideline to classify roads. The mileage guidelines shall have precedence over VMT percentages. Each county shall be considered separately in using the guidelines. For each county, the total mileage of the rural Arterial and Collector Systems shall not exceed 37 percent of the county's total rural mileage.
37 Miss. Code. R. § 1-8501-06010-500