Idaho Statutes Title 49. Motor Vehicles § 49-1011. Exception to weight and size limitations

(1) If federal law permits the several states to establish size and weight limits in excess of those prescribed in sections 49-1001 and 49-1010, Idaho Code, the board, as provided in subsection (2) of this section, may authorize the movement on highways under its jurisdiction of vehicles, motor vehicles, trailers and/or semitrailers, or combinations thereof, of a size or weight in excess of the limits prescribed in sections 49-1001 and 49-1010, Idaho Code, but within the limits necessary to qualify for federal-aid highway funds.

(2) The authority granted the board by the provisions of this section shall be exercised by adoption of rules or regulations pursuant to section 40-312, Idaho Code, or by issuance of permits pursuant to section 49-1004, Idaho Code, except that the maximum size and weight limits authorized in this section apply.

(3) The following vehicles may be operated on any highway that is not part of the federal-aid interstate system, up to two thousand (2,000) pounds in excess of any axle, bridge or gross vehicle weight limit established in section 49-1001, Idaho Code, as determined by the vehicle operator:

Such extra weight shall not apply to posted bridge weights or other seasonal or temporary weight limit postings.