Permit fees are determined by the percentage of overload allowed by the permit. Permits may be purchased at the time of registration or between registration renewal periods at a pro-rated fee. Annual costs are:
Farm vehicles pay half the fee for overload permits.
In addition to the overload permit issued by DMV, motor vehicles transporting Virginia-grown forest or farm products from the place of production, harvesting, cutting, or felling to a location where they are first processed may receive an additional 5% extension on applicable weight limits. This extension:
is applicable to Virginia state (non-federal) highways only
does not authorize a gross weight exceeding 84,000 pounds
does not authorize an extension of axle or gross weight limitations, regardless of axle spacing, on interstate highways.