Section 13 AAC 03.325 - Special speed limitations(b) A person may not drive a commercial motor vehicle that is towing a mobile home at a speed greater than 45 miles per hour.(c) A person may not drive a commercial motor vehicle equipped with lighted headlights described in 13 AAC 04.020(g) at a speed greater than 20 miles per hour.(d) A person may not drive a commercial motor vehicle at a speed in excess of 20 miles per hour when passing a marked public school or playground crosswalk that is posted with an official school, school crossing or speed-control sign. A speed zone extends 300 feet in either direction from a marked school playground crosswalk.(e) A person driving a commercial motor vehicle that is passing a school bus displaying alternately flashing yellow lights in accordance with 13 AAC 04.097(b) may not exceed a speed of 20 miles per hour.(f) A person may not drive a commercial motor vehicle or a combination of vehicles over a bridge or other elevated structure or through a tunnel or underpass constituting a part of a highway, ferry facility, or city street at a rate of speed, with a gross weight, or of a size that is greater than the maximum speed, weight, or size identified by an official traffic-control device.Eff. 3/14/93, Register 125