37 Miss. Code R. § 1-7501-04002-303
TYPE 3 - CONVENTIONAL HIGHWAY - A conventional highway is a highway consisting of two (2) traffic lanes or divided highways with two (2) or more lanes in each direction without frontage roads on either side, and which has not been designated by the Commission as either Freeways or Partially Controlled Access Highways. On conventional highways, vehicular ingress and egress from abutting property directly to and from the through traffic lanes is permitted, except that direct access may be restricted for safety and/or as indicated in the Access Management Manual and the Department's Rules. The right of way of conventional highways may be used for the construction and maintenance of utility lines and other approved installations in accordance with the Department's Rules.
For determining levels of access and minimum standards such as driveway spacing, conventional highways are subcategorized by speed and area type (rural versus urban).
37 Miss. Code. R. § 1-7501-04002-303