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Please take notice: There may be updates or other requirements not listed. 

CHECK the laws/rules of each State along route before entering each State!

Montana  http://www.mdt.mt.gov/

Good MT Traveler Information Map

Pilot/Escort Vehicle is Required
A. On interstate:
Over 16'6” wide- 1 rear
Over 120' long- 1 rear
B. On 2-lane or multi-lane non-interstate:
Over 12'6” to 16’6” wide- 1 front
Vehicle or load exceeds 16’6”'- 2 (front & rear)
Over 110' long- 1 rear
Over 10' wide & not equipped with lights & signs- 2 (front & rear)
Over 17' high (before permit- route survey)
C. Convoys: No more than 5 OS/OW loads needing escorts may convoy if width not over 14' (or 15' w/ projections and not over 120' long)- 2 (front & rear); 
not more than 5 may convoy if length of any unit is over 110' long on interstate highways
D. 32-j movement (movement of large & unusual objects not covered by other rules/regulations of DOT)
Class 1:  Over 18’ wide-34’ wide; over 17’ high-24’ high; over 150’ long-200’ long; weight doesn’t require Bridge Bureau approval
                Travel times same as other os/ow vehicles (above)
                Width requires 1 front/2rear pilot/escort vehicles; Length requires 1 pilot/escort
Class 2:  Over 34’ wide; over 24’ high or route requires utilities to cut power lines; over 200’ long
                Travel times same as other os/ow vehicles (above)
                Interstate: Width requires 1 front/2 rear pilot/escort vehicles; Length requires 1 rear pilot/escort; Height requires 1 front pilot/escort if                 
power lines need to be cut
                Non-interstate: Width requires 2 front/2 rear pilot/escort vehicles; Length requires 1 front/1 rear; Height requires 1 front/1 rear pilot/escort if  
power lines need to be cut
Class 3:  Width not over 18’; height not over 17’; length not over 150’
                Weight requires Bridge Burearu approval

MONTANA
DEPARTMENT OF TRANSPORTATION
MOTOR CARRIER DIVISION
2701 PROSPECT AVENUE
HELENA, MONTANA 59620

PHONE: 406-444-7262
HOURS: MONDAY - FRIDAY 8:00 A.M. - 5:00 P.M
MOUNTAIN TIME

LEGAL LIMITS DESIGNATED HIGHWAY ALL OTHER ROADS
Weight:
Single 20,000 20,000 on secondary
Tandem 34,000
34,000
Tridum 42,000 42,000
Gross Weight 80,000
Federal Bridge Formula Applies
80,000
Width 8'6" 8' 6"
Height 14' 14'
Semi-trailers 53' 53'

OVERHANG
3' front, 4' rear

PERMIT LIMITS

ROUTINE ISSUE

Weight:
Single
Depends on axle spacings, 20,000
Tandem Depends on axle spacings, 48,000
Tridum Depends on axle spacings, 51,750
Quad Depends on axle spacings, 55,440
Gross Weight: 5 Axles 107,000
6 Axles 110,000
7 Axles 114,200
8 Axles 126,000
Length:   150'
Width:   18'
Height:   17'
If load exceeds any of these dimensions or 180,000 lbs., refer to the section on Super Loads.


PERMITS VALID FOR:
Single trip permits are valid for three (3) consecutive days.

OPERATING TIME
Continuous travel is allowed for loads that are not exceeding 10' in width; 14'6" high, 110' in length with overhang, 110'0 in length without overhang on non-interstate. Non-reducible loads 10'0" or less may travel on the interstate systems.

Daylight Travel - Monday through Friday (excluding holidays) Travel is allowed during the hours of daylight, Monday through Friday for vehicles over 10' but not exceeding 18' wide or 120' long or 18' high (over 17' high must have Helena approval), travel IS NOT allowed on Saturday, Sunday, Holidays and Holiday weekends (exception implements of husbandry)

WEEKEND TRAVEL
Daylight Travel - 7 days a week (excluding holidays) Travel is allowed during the hours of daylight, 7 days a week (excluding holidays and holiday weekends and Red Routes), providing the vehicle or load does not exceed 18' wide, 120' long or 18' high (over 17' high must have Helena approval), vehicles hauling hay which exceeds 14'6" to 15' high and single vehicles exceeding 55' long are restricted to daylight travel.

DIVISIBLE LOADS
Divisible loads may be permitted up to and including 14'6" high. These loads cannot exceed axle weights of 20,000 lbs, 34,000 lbs or 42,000 lbs even if gross weight is over 80,000 lbs. Permits may be issued to haul reducible loads up to and including 9' wide, baled hay and hay racks may be permitted up to and including 9'6" wide. Travel is allowed 24 hours a day, 7 days a week on all highways including "red routes"* and on holidays and holiday weekends. Loads exceeding 9' wide must be non-reducible. The only exception is baled hay, round bales and hay racks which may be hauled up to and including 12' wide. All travel is limited to daylight hours only. All restrictions for 12' wide loads apply to baled hay. Permits may be issued to haul reducible loads up to and including 95'. If there is any overhang then travel is restricted to daylight hour, 7 days a week except on "red routes" and holidays and holiday weekends. If there is no overhang travel is allowed 24 hours, 7 days a week on "red routes", holidays and holiday weekends. Loads exceeding 120' length are not allowed to travel on Saturday, Sunday or holidays, holiday weekends or on "red routes" after 3:00 p.m. on Friday until sunrise on Monday. *Red routes refer to special restrictions indicated on the state's "Red Route Map". This map may be obtained by calling the state of Montana at 406-444-6130.

EXCEPTIONS
Blades and buckets may be hauled attached as long as the equipment is part of the load.

INFORMATION NEEDED TO ORDER A WIDE LOAD, OVERSIZE AND HEAVY HAUL PERMITS:
Name and address of applicant, PSC or insurance company, power unit serial number, year, make, license number, dimensions, destination, start date and routes, US DOT number, FEIN number.

ESCORTS FOR WIDELOAD AND OVERSIZED SHIPPING

When Escorts are Needed # Escorts
On Interstate:
Width over 166" 1 Rear
Width over 120' 1 Rear
On 2-Lane or Multi-Lane Non-interstate:
Width over 12'6" up to 14' 1 Front
Width main body of load OVer 14' or overall width is over 15' 2 (Front & Rear)
Length over 110' 1 Rear
If escort is required on non-interstate only (i.e. load dimensions not over 16' wide or 120' long) the load may travel within a 2-mile radius on interstate interchange without an escort
Width over 10' and not equipped with lights and signs state requires 2(Front & Rear)
Height over 17' (before permit application) Route Survey
Convoys:*
No more than 5 O/O loads needing escorts may convoy if width not over 14' (or 15' w/projections and not over 120' long 2 (Front & Rear)
No more than 5 vehicles 2 (Front & Rear)
*For convoys, escort must have sign stating: "Oversize Load, Convoy Follows (# of vehicles)"

Restricted Travel
Travel not allowed after 3:00 p.m. on Friday to sunrise on Monday on highways indicated on the "red route" map. A special permit is required to travel through Billings. Restrictions will be listed on the permit. Each city determines its own restricted hours.

*CONTACT STATE FOR ADDITIONAL INFORMATION ON RESTRICTED TRAVEL FOR WIDELOADS, OVERSIZED AND OVERWEIGHT PERMITTED CARGO

SPRING WEIGHT RESTRICTIONS
Normally from February 1 through June 31, frost law is set by the Maintenance District 406-444-6157, speed limit and weight limit restrictions can be applied during frost laws, usually 8 tons on single axle, 16 tons tandem axle and 600 lbs on steering axle

Overweight, Oversized & Wideload SuperLoads
oads in excess of routine issue limits shall submit an application including drawings, axle spacings and tire sizes to the state. 

Processing will take anywhere from two weeks to a month to receive permit. 

(FYI, the Pilot car database at AllPilotCars cannot be searched, printed, copied, etc, it is all protected content. The State rules above, can be printed. The Hole Of Shame list is available by it self, as a html page, that anyone can save, search, print, or whatever. This is done to save folks like you  from getting ripped off. Show your Appreciation and become a Sponser! Get calls/reports about saving people $$$ all the time. (IT WORKS!). To download/save/print the Hole of Shame list click here  (The list does get updated as needed, so always check the date, and keep your copy current and handy.)
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