RouteAllMontana Oversize Load Signs, Flags And Lights
Sources Reviewed: October 23, 2026
Montana’s current eTRIPs restriction sheet ties the ordinary sign-and-power-unit-light instruction to vehicles or loads exceeding 10 feet wide. Restriction 34 specifies the lettering and associated amber equipment; the pilot-vehicle entry is separate. Read the numbered restrictions actually assigned to the permit.
On This Page
What Does Montana Restriction 34 Say About The Sign?
The July 27, 2026 sheet calls for front and rear oversize-load or similarly worded signs at a visible height, with black letters at least 8 inches tall on yellow; it notes an exception for digital signs. That entry does not set a fixed overall banner dimension.
When ordering a banner, separate a supplier’s common size from the minimum actually established in this source. Check the full face from approaching traffic after mounting. A sign hidden by the cargo does not meet the practical visibility question just because its lettering measures correctly.
How Are The Power-Unit Lights Connected To That Warning?
Restriction 34 places flashing amber equipment at each end of the power-unit sign, visible through 360 degrees. It gives a 5-inch minimum diameter, 50 candlepower and 60–90 flashes per minute, with rotating or strobe alternatives.
Check the installation as a system, including any view blocked by the load or cab equipment. A light that works on a workbench may be screened after loading. Ask the carrier to resolve an alternative installation rather than assuming a generic roof beacon matches every detail.
Does That Width Rule Answer Every Flag Question?
No. Restriction 34 is a sign-and-light entry, not a complete treatment of projecting-load flags. Federal projecting-load marking can apply independently to covered commercial movements; use the federal rule and the permit’s other conditions for that separate check.
For a narrow load with a long rear projection, do not stop the equipment review at the fact that it is under the sign width threshold. Identify the projection and the applicable marking source. Silence in a width-specific paragraph does not establish an exemption.
What Must The Pilot Car Check Separately?
The same MDT sheet contains a separate pilot-vehicle equipment entry under restriction 32. Match it to the assigned role and permit, rather than treating the hauling-unit instruction as the pilot’s entire checklist.
Montana also distinguishes highway movement from the trip’s service and local-road legs. During a border handoff, give the incoming crew the actual restriction pages and identify any unresolved lighting or sign question. A summary copied from the previous state is not a substitute for that packet.
How Can RouteAll Help Prepare This State Leg?
Import the issued Montana 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
Locate restriction 34, check the complete sign-and-light installation, and review projection marking and the pilot-vehicle entry independently.
Further Reading
Sources And Scope
The agency PDF itself is dated July 27, 2026; an older search snippet still showed December 2025. This guide uses the document date and does not invent an overall sign dimension or infer no flag requirement from restriction 34.
- MDT Montana Permit Restrictions, July 27, 2026 — Restrictions 32 and 34; general conditions and permit attachments.
- 49 CFR 393.87 — Independent federal projecting-load flag duties for covered movements.