Daily vehicle inspection requirements include a check of the operational parts of an air brake system, like the governor, the air compressor and the low-air-pressure warning devices. This portion of ...

On August 1, 2011 a new air brake standard for three-axle tractors with Gross Vehicle Weight Ratings (GVWRs) up to 59,600 lbs. took effect. This rule applies to tractors invoiced after August 1, 2011.