Virginia law § 46.2-1129.1 allows certain vehicles equipped with auxiliary power units or idle reduction technology to carry an additional 550 pounds beyond standard weight limits. To qualify, operators must certify the weight and functionality of the technology, which helps reduce fuel use and emissions. Law enforcement can verify these certifications during inspections.
An auxiliary power unit is a mechanical or electrical device attached to a vehicle that provides power for systems other than the main engine, helping to reduce idling.
Vehicles utilizing qualifying idle reduction technology can carry up to an additional 550 pounds beyond standard weight limits.
Operators must provide written certification of the weight of the idle reduction technology and demonstrate that it is fully functional at all times.
Yes, law enforcement officials can request and review the certification documentation if the vehicle is found in violation of weight laws.