Alaska

Alaska does not publish a standard oversize dimension threshold the way most states do. Hauling loads to Alaska through Canada requires a US passport, a United States–Canada Transit Manifest (Customs Form 7512-B), and equipment that meets Canadian trucking laws (including spread-axle and Canadian oversize permit restrictions). Alaska is not an IFTA member state, and drivers should pay particular attention to highway frost/freeze advisories.

Any axle spaced less than 8 feet 1 inch from another axle is considered part of an axle group, and in multi-axle groups every axle must carry at least 6,000 lbs. For a truck-tractor and single semitrailer combination where the semitrailer is 48 feet or more, the weight on a three-axle group on the semitrailer may not exceed: 42,000 lbs at 3'6" minimum spacing, 43,500 lbs at 5' minimum spacing, or 45,000 lbs at 6' minimum spacing.

Phone

907-365-1200 OP2

Website

webapp.state.ak.us/xop/mainmenu.aspx

The weight on a tire may not exceed 600 lbs per linear inch of tire width (manufacturer's nominal rating). Any axle spaced less than 8'1" from another is considered part of an axle group, and in multi-axle groups every axle must carry at least 6,000 lbs.

Vehicles operating in more than one jurisdiction without a prorate agreement must pay full Alaska registration fees, but may acquire a Dual Registration by submitting current out-of-state registration, a Title & Registration application, fees, USDOT/Tax ID number and axle count to any DMV office (Canadian vehicles must also provide proof of heavy vehicle use tax payment). Alternatively, a one-time trip of up to 30 days can use a Commercial Vehicle Trip Permit obtained at the Tok Weigh Station: $350 for trucks, vans, truck tractors, or a commercial bus, and $10 for all other commercial vehicles (including trailers or semi-trailers). Alaska is not an IFTA member state.

Permitted oversized and overweight vehicles are prohibited from moving during Memorial Day, Independence Day, and Labor Day holiday periods unless specifically allowed on the permit. For holidays falling on a Sunday or Monday, movement is restricted from noon the previous Friday until midnight Monday. For holidays falling on a Friday or Saturday, movement is restricted from noon Thursday until midnight Sunday.

Acceptable signs read "OVERSIZE", "OVERSIZE LOAD", or "WIDE LOAD" for overwidth vehicles, and "OVERSIZE", "OVERSIZE LOAD", or "LONG LOAD" for overlength vehicles — black lettering on a yellow background outlined in black, minimum 48" long by 12" wide with 10-inch letters and a 2-inch brush stroke. Flags must be square, minimum 16" per side, red or fluorescent orange. The vehicle's beacon or light bar must be amber, high-intensity rotating/flashing/oscillating/strobe, roof-mounted (or as close to the roofline as practical), visible for a minimum of 500 feet through a full 360 degrees.

Studded tires and tire chains may not be used on paved highways from May 1 through September 15 north of 60° North latitude, or from April 15 through September 30 south of 60° North latitude — except that on the paved portion of the Sterling Highway, studded tires or chains may not be used from May 1 through September 15 regardless of latitude. The commissioner of public safety may extend these periods for unusual seasonal or weather conditions, and additional use periods may be granted for a fee equal to one-third of the biennial registration fee. Tread must be at least 2/30 inch measured in two adjacent grooves at three equally spaced points around the tire.

Alaska's frost-law policy (17 AAC 25.100) is a standing bulletin rather than a live activation/lift notice, so no current restriction status can be confirmed here — check the ADOT&PF portal directly before dispatch. Coverage is limited to state highways under ADOT&PF authority; local roads are not included.

Coverage

Non-reducible loads only

Max height

15'

Max width

10'6"

Max length

75'

Max weight

125% of legal weight (loads outside these limits require a single-trip permit)

Overweight annual

$500/year — max 125% of legal tire/axle/gross weight, no travel restrictions, no signs or flags required

Overlength annual

$450/year — max 85' overall length, 10' rear overhang, 53' trailer; some travel restrictions apply, oversize signs and red flags required

Overwidth annual

$500/year — max width 10'6"

Summer brings a heavy highway and bridge construction season. Commercial construction projects require increased alertness through work zones — reducing speed and heeding warning signs helps keep trips safer and lowers the risk of injury to construction workers.

There are no separate, specific regulations applicable to manufactured homes in Alaska beyond the standard oversize/overweight permit rules described above.