Michigan Oversize Load Signs, Flags And Lights
Sources Reviewed: October 23, 2026
Michigan’s special-provisions sheet contains several different equipment instructions. Use the provision numbers actually attached to the permit. The ordinary 7-foot load-banner provision and a separate mobile-home sign arrangement are not interchangeable defaults for every Michigan trip.
On This Page
What Does Michigan Provision 19 Specify?
The reviewed MDOT sheet’s provision 19 calls for two OVERSIZE LOAD signs, 7 feet by 18 inches, with 10-inch black letters on yellow. One is at the vehicle front and the other at the load rear, with a vehicle-rear alternative if the load mounting is illegible or impossible.
Start by locating the provision on the issued document. Do not select equipment from a summary without checking whether that provision applies to this move. Keep the sheet with the permit so the crew can trace a number to its complete instruction.
How Should Corner Flags Mark An Irregular Load?
Provision 8 addresses overwidth or overlength vehicles and loads: clean red or orange flags at least 18 inches square at the four corners, plus the widest point on each side where it extends beyond the corner flags. Provision 7 separately addresses oversize mobile homes.
A machine with an attachment protruding beyond the trailer corners needs a load-shape check. Have the checker identify any point wider than the existing flag line. Counting flags without looking at the outline misses the decision this instruction is intended to resolve.
Why Are Mobile-Home Sign Instructions Different?
Provision 17 describes a different front-and-rear arrangement, including a special 16-foot-wide-load legend for the stated mobile-home case. It should not be silently substituted for provision 19 or reduced to one national banner specification.
If the permit references the special provision, review its complete dimensions, mounting height and headlights instruction with dispatch. A truck changing from machinery transport to a building module may need a different equipment plan even though the power unit has not changed.
Which Lights Belong To The Escort And The Load?
The sheet separately addresses escort roof amber lights and 5-foot by 12-inch roof signs in provisions 11 and 12, and extreme-rear load lights in provision 13. Their application follows the permit’s selections.
Read each selected number aloud at the pre-trip meeting and identify the responsible vehicle. A working escort beacon does not demonstrate that a separately required rear-load light is operating. Photograph the resolved arrangement for the crew’s handoff, while retaining the actual permit as authority.
How Can RouteAll Help Prepare This State Leg?
Import the issued Michigan 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
Check the selected provision numbers, distinguish the cargo category and verify the front, rear, widest-point and escort warning arrangements required for that permit.
Further Reading
Sources And Scope
The MDOT provisions form was reviewed October 23, 2026 through agency-hosted indexed text. The numbered statements are not asserted to apply simultaneously to every permit. Confirm the selections and any written conditions on the actual issued document.
- MDOT Special Provisions, Conditions And Restrictions — Numbered equipment provisions 7, 8, 11–13, 17 and 19.
- MDOT Oversize/Overweight Permits — Official permit program and access to current provisions.