RouteAllMississippi Oversize Load Signs, Flags And Lights
Sources Reviewed: October 23, 2026
Mississippi’s January 13, 2026 permit manual separates the over-10-through-12-foot flag band from loads exceeding 12 feet wide. Above 12 feet, its general safety rules add front-and-rear warning signs and rear amber lights. Check special permit categories as well as those general rules.
On This Page
What Banner Does The 2026 Mississippi Manual Define?
The manual defines an OVERSIZE LOAD or WIDE LOAD sign measuring 84 by 18 inches. It specifies 10-inch black letters with a 1⅝-inch stroke on a yellow or orange background. General Permit Regulation 17 requires signs when load width exceeds 12 feet.
Measure the complete loaded width rather than treating the permit’s existence as the sign trigger. Put the actual width next to the equipment checklist so the crew can see why the selected arrangement applies.
What Changes At The Twelve-Foot Boundary?
General Safety Requirement 6 puts warning flags at all corners, 6 feet above pavement, on moves over 10 feet but not over 12 feet wide. Requirement 7 adds front-and-rear signs and two 5-inch flashing amber lamps at the rear corners for loads over 12 feet; lamp visibility is 500 feet.
The manual’s flag definition is red and 18 inches square. For an awkwardly shaped load, have the carrier resolve how the required mounting works with the cargo before dispatch. Do not replace an explicit placement instruction with a loose flag tied somewhere convenient.
Does A Special Category Change The General Setup?
The manual has separate rules for manufactured homes and other permit categories. For example, the manufactured-house provisions include mover identification requirements; that is a different purpose from warning other traffic that a load is wide.
List those duties separately. A visible company name does not replace the warning legend, and a warning banner does not answer whether required mover identification is present. Check the permit type before reusing the previous job’s equipment worksheet.
How Is The Escort Check Separate?
The manual describes escort signs, amber lighting and two-way communication independently from the load’s rear lamps. Its escort definition also addresses a car that alternates between leading and following.
State the escort role at the meeting, then verify the sign faces for that role. A lead car’s functioning warning light is not evidence that the truck’s rear-corner lamps work. A relief driver should receive the same equipment and role briefing, rather than only the pickup location.
How Can RouteAll Help Prepare This State Leg?
Import the issued Mississippi permit into RouteAll, review the extracted roads against the document and share the reviewed route with the crew. Use the permit packet to check marking conditions separately. RouteAll does not inspect warning equipment or certify compliance; a route shown in the app does not approve signs, flags or lamps.
Before You Roll
Read the permit category, write down the actual width and confirm the flag-height, sign and rear-lamp instructions that apply to that width band.
Further Reading
Sources And Scope
This reference uses the January 13, 2026 manual. Older Mississippi copies and summaries are not treated as the current authority. The issued permit can add conditions, and special-category rules must be read independently.
- MDOT Permit And Motor Carrier Manual, January 13, 2026 — Definitions; General Permit Regulation 17; General Safety Requirements 6–7; escort definition.
- Mississippi Permit Resource Materials — Authority of the current manual and additional permit conditions.