Vehicle maintenance for or by commercial uses shall be confined to the lot that the principal use is located and shall not take place on residential streets. Maintenance shall include but not be limited to washing, waxing, oil changes and degreasing.

Vehicles for storage, inventory and service, including those with dealer markings on the windshield that may be considered a moving obstruction, shall be confined to the lot that the principal use is located and shall not be parked on residential streets.

Unless customarily incidental to a principal permitted use, gasoline or other flammable liquids shall not be stored on site.

No more than one vehicular access shall be permitted for each building along each road frontage.