Simplify Your Oversize/Overweight Loads
Registration and Licensing Requirements
All manufactured homes moved on their own axles on any public highway are required to be licensed, permanently or temporarily, with the exception of, new manufactured homes, being transported either prior to first sale at retail or to the initial setup location of the original purchaser. The manufactured home registration (if required) and general property tax receipt shall be made available for inspection upon demand of any enforcement officer.
Insurance Requirements
The permittee or the driver of the vehicle hauling or towing overwidth manufactured homes, modular buildings, and office trailers shall be required to carry evidence of general liability insurance in the permitted vehicle written by a company licensed in Idaho showing coverage in the minimum amounts of three hundred thousand dollars ($300,000) when hauling permittee’s own manufactured home. When hauling for hire permittee must carry a minimum amount of seven hundred and fifty thousand dollars ($750,000) insurance coverage, and have proper authority.
Manufactured Homes, Modular Buildings, and Office Trailers Being Towed on Their Own Axles
a. Connection Device. Shall meet the requirements of Federal Motor Carrier Safety Regulations,
49CFR part 393.
b. Length. Not in excess of eighty (80’) feet including tongue.
c. Width. Shall be limited to a maximum of sixteen (16) feet at the base and shall not exceed eighteen (18) feet overall width including the eaves, except on a case-by-case basis as approved by the Department. All movements with a base width in excess of sixteen (16) feet and an overall width in excess of eighteen (18) feet must submit a written request for movement of these units prior to being manufactured and a traffic control plan may also be required with the submission. Prior approval for the movement must be granted before a special permit is issued. Determination of manufactured home, modular building, or office trailer width shall be exclusive of such appurtenances as clearance lights, door handles, window fasteners, door and window trim, moldings and load securement devices up to but not in excess of three (3) inches on each side of load.
d. Eaves. No restrictions on eaves as long as the eighteen (18’) feet maximum overall width limitation is not exceeded, or for those movements approved by the Department on a case-by-case basis.
e. Weight. The maximum allowable load for any vehicle tire operated on any public highway shall be in accordance with Code of Federal Regulations, Title 24, Chapter 20, Office of Assistant Secretary for Housing - Federal Housing Commissioner, Department of Housing and Urban Development, Part 3280, Subpart J, (CFR Title 24).
f. Running Gear Assembly – General. The entire system (frame, drawbar, and coupling mechanism, running gear assembly including brake systems, axles and lights) shall be in accordance with CFR Title24, for the year the manufactured home was built. In addition thereto, all tires used in transportation of manufactured homes under this category shall be in accordance with Federal Motor Carrier Safety Regulations, part 393.
g. Construction. Construction shall be in accordance with CFR Title 24, for the year the manufactured home was built.
h. Axles. All axles shall be in accordance with CFR Title 24, for the year the manufactured home was built, except that sixteen (16) foot wide (at the base) manufactured homes shall be required to have a minimum of four (4) axles.
i. Brakes. Brakes shall be in accordance with CFR Title 24, for the year the manufactured home was built, except that sixteen (16) foot wide (at the base) manufactured homes shall be required to have brakes on a minimum of three (3) axles.
j. Lights. The unit shall have stop lights, turn signals, and tail lights that meet the requirements of Federal Motor Carrier Safety Regulations, part 393.
k. Safety Chains. Two (2) safety chains shall be used, one (1) each on right and left sides of, but separate from, the coupling mechanism connecting the tow vehicle and the manufactured home while in transit. Chain shall be three-eighths (3/8) inch diameter steel. Chains shall be strongly fastened at each end to connect the tow vehicle and manufactured home and assure that in the event of a coupling failure the manufactured home will track behind the tow vehicle.
Vehicles for Towing/Hauling Manufactured Homes, Modular Buildings, and Office Trailers
a. Towing Vehicle. Tow vehicles for manufactured homes, modular buildings, and office trailers shall comply with the following minimum requirements:
Manufactured Homes and Office Trailer Width | Tire Width | Drive Axle Tire Rating | Min. Unladen Weight | Rear Axle Rating |
over 8ft to 10ft | 7.00 inches | 6 Ply | 6,000 lbs. | None |
over 10ft to 12ft | 8.00 inches | 8 Ply | 8,000 lbs. | 15,000 lbs. |
over 12ft | 8.25 inches | 10 Ply | 12,000 lbs. | 15,000 lbs. |
b. Brakes. Shall be in accordance with Federal Motor Carrier Safety Regulations part 393. c. Rear Axle. Towing vehicle shall have a minimum of a single axle with dual mounted tires.
d. Connection Device. Shall meet the requirements of Federal Motor Carrier Safety Regulations, part 393.
e. Horsepower Requirement. When towing/hauling a manufactured home, modular building, or office trailer a minimum speed of twenty-five (25) mph must be maintained.
f. Operator Requirements. Operators of vehicles towing manufactured homes, modular buildings and office trailers over ten (10’) feet wide at the base shall have a class A or B Commercial Driver’s License (CDL) as appropriate.
g. Speed Limit Requirements. Vehicles towing manufactured homes or office trailers on their own axles shall be limited to a maximum of sixty (60) miles per hour.
Manufactured Home, Modular Building, Or Office Trailer Being Hauled
a. Length. Not in excess of eighty (80) feet.
b. Width. Not in excess of sixteen (16) feet at the base and eighteen (18) feet overall, except on a case-by-case basis as approved by the Department. All movements with a base width in excess of sixteen (16) feet and an overall width in excess of eighteen (18) feet must submit a written request for movement of these units prior to being manufactured and a traffic control plan may also be required with the submission. Prior approval for the movement must be granted before a special permit is issued.
c. Eaves. No restrictions on eaves as long as the eighteen (18) foot maximum overall width limitation is not exceeded, or for those movements approved by the department on a case-by-case basis.
Source of information: https://itd.idaho.gov/wp-content/uploads/2019/07/Oversize_Non-Reducible_Requirements.pdf
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