Section 37-1-8501-06010-400A. Requests for functional classification revisions may be submitted to PLD by responsible local officials or be initiated by PLD. All requests to PLD for functional classification revisions must include adequate maps showing proposed changes in compliance with the requirements herein and must be accompanied by supporting documentation. Proposed rural changes must have the approval of the County Board of Supervisors and the concurrence of the Office of State Aid. Proposed urban changes must have the approval of the chief elected official of each incorporated municipality affected by the requested revision. In urbanized areas all requests must be submitted through the MPO. Supporting documentation must include current and/or projected traffic volumes, land access service, and vehicle miles of travel or any other criteria used to establish functional classification.37 Miss. Code. R. § 1-8501-06010-400