Alaska Administrative Code
Title 17 - Transportation and Public Facilities
Chapter 25 - Operations, Wheeled Vehicles
Article 1 - Motor Vehicles: Size and Weight
17 AAC 25.017 - Supplemental axles

(a) Unless a vehicle is authorized to use supplemental axles under a permit issued under 17 AAC 25.320, supplemental axles may be used on vehicles operating on the state highway system only as provided in this section. Supplemental axles must have a manufacturer's rating equal to the weight being carried on the axle, but no less than 10,000 pounds on the axle.

(b) Supplemental axles may only be used on trailers and rotating drum transit mix concrete trucks for legal gross vehicle weight calculations. The weight adjustment controls for supplemental axles must be located outside the driver's compartment and not within reach of the driver while the vehicle is in motion. A rotating drum transit mix concrete truck with a lift axle must comply with 17 AAC 25.015(a). The up-and-down position controls for liftable belly axles may be located in the driver's compartment on bulk tank delivery vehicles, but these controls may only be activated when entering or exiting delivery terminals, including service stations. Adjustable air ride suspension systems may be used, if the tires are not lifted off the roadway.

(c) Repealed 10/7/2001.

(d) Belly axles may be used on trailers and semitrailers operating on the state highway system. A belly axle on vehicles first placed into service in this state after June 30, 1990 must be self-steering. The department will use the vehicle registration required by AS 28.10 as evidence of the date that the vehicle or trailer was placed in service in this state.

(e) Repealed 10/7/2001.