Current through September 2, 2024
Section 39.03.01.010 - DEFINITIONS01.Analysis. A mathematical study of a vehicle or combination of vehicles and the stress they cause over bridges or specific sections of highways conducted by a professional engineer.02.Annual. Twelve (12) consecutive months.03.Appurtenances. Rearview mirrors turn signal lamps, splash and spray suppressant devices, awnings on recreational vehicles, load-induced tire bulge, and other non-cargo carrying appurtenances are excluded from the calculation of allowable width. Front-mounted refrigeration units, energy conservation devices, bolsters, mechanical fastening devices, hydraulic lift gates, external front-mounted side curtain rollers, and other non-cargo carrying appurtenances or devices will be excluded from determining allowable length.a. Other appurtenances not listed above are limited to extending three (3) inches on each side or end of a vehicle or load. Other appurtenances may include, but not be limited to, clearance lights, door handles, handholds, window fasteners, door and window trim, moldings, and load securement devices.04.Cargo-Carrying Unit. Any portion of a commercial motor vehicle combination (other than a truck tractor) used for carrying cargo, including a trailer, semitrailer, or the cargo-carrying section of a single-unit truck. The length of the cargo-carrying commercial motor vehicle with two or more such units is measured from the front of the first unit to the rear of the last (including the connecting devices between the units).05.Convoy. A group of two (2) or more motor vehicles traveling together for protection or convenience.06.Disabled Vehicle. A vehicle unable to complete transportation under its own power.07.Divisible Load. Referred to in Title 49, Idaho Code as Reducible. Single or multiple items for transport could reasonably be repositioned so the load conforms to legal size and weight dimensions. Determining the ability to reduce the load primarily depends on the intended disposition of the contents of the load upon delivery to its destination (i.e., made into smaller pieces).08.Emergency Movement. A vehicle or vehicle combination hauling a load traveling to the site of an emergency for the purpose of aiding in eliminating the emergency.09.Height. The total vertical dimension of a vehicle above the ground surface, including any load and load-holding device thereon.10.Legal. In compliance with the Idaho Code on size and weight.11.Length. The total longitudinal dimension of a single vehicle, a trailer, or a semi-trailer. The length of a trailer or semi-trailer is measured from the front of the cargo-carrying unit to its rear, exclusive of all overhang and any appurtenances.12.Longer Combination Vehicle (LCV). Any combination of a truck-tractor and two (2) or more trailers or semi-trailers that operate on the National System of Interstate and Defense Highways with a gross vehicle weight (GVW) greater than thirty-six thousand two hundred eighty-eight (36,288) kilograms (eighty thousand (80,000) pounds).13.Modular Buildings. A facility designed as a building or building section constructed to standards contained in the Uniform Building Code (UBC), adopted by Section 39-4109, Idaho Code.14.Non-Divisible. Referred to in Title 49, Idaho Code as Non-Reducible. Any load or vehicle exceeding applicable length or weight limits that, if separated into smaller loads or vehicles, would:a. Compromise the intended use of the vehicle, i.e., make it unable to perform the function for which it was intended; orb. Destroy the value of the load or vehicle, i.e., make it unusable for its intended purpose; orc. Require more than eight (8) work hours to dismantle using appropriate equipment. The applicant for a non-divisible load permit has the burden of proof of establishing the number of work hours required to dismantle the load.15.Off-Track. The difference in the path of the first inside front wheel and of the last inside rear wheel as a vehicle negotiates a curve.16.Overall Length. The total length of a combination of vehicles, i.e. truck tractor-semitrailer-trailer combination, measured from front bumper of the motor vehicle to the back bumper or rear extremity of the last trailer including the connecting tongue(s) plus any load overhang.17.Oversize. A vehicle or load in excess of the limits established in Section 49-1010, Idaho Code.18.Overweight. A single vehicle or a vehicle combination hauling or towing a load whose weight is in excess of eighty thousand (80,000) pounds and/or legal axle weights.19.Single Axle. An assembly of two (2) or more wheels whose centers are in one (1) transverse vertical plane or may be included between two (2) parallel transverse planes forty inches (40") apart extending across the full width of the vehicle.20.Snowplow. A device intended to remove snow or ice from road surfaces.21.Special Permit. A permit issued by the Idaho Transportation Department that authorizes the movement of vehicles or loads on the state highway system in excess of the sizes and weights allowed by Sections 49-1001, 49-1002, or 49-1010, Idaho Code.22.State Roadways. A collective term referring roadways under the purview of the department, which include United States federal interstate and defense highways, State Highways, and any other local roads covered under an agreement with the department.23.Steer Axle. The axle or axles on the front of a motor vehicle are activated by the operator to directly accomplish guidance or steerage of the motor vehicle and/or combination of vehicles.24.Tandem Axle. Any two (2) axles whose centers are more than forty inches (40") but not more than ninety-six inches (96") apart and are individually attached to and/or articulated from a common attachment to the vehicle, including a connecting mechanism designed to equalize the load between axles.25.Tridem Axle. Any three (3) consecutive axles whose extreme centers are not more than one hundred forty-four inches (144") apart, and are individually attached to and/or articulated from a common attachment to the vehicle, including a connecting mechanism designed to equalize the load between axles.26.Vocational Vehicle. A vehicle specifically designed to enable the operator to perform specific tasks, none of which are primarily to transport loads. Cranes, loaders, scrapers, motor graders, and drill rigs are examples of vocational vehicles.27.Width. The total outside transverse dimension of a vehicle, including any load or load-holding devices thereon, excludes any appurtenances.28.Wrecker Truck. A motor vehicle designed and used primarily for towing disabled vehiclesIdaho Admin. Code r. 39.03.01.010