Abstract: Improved devices and methods for mounting a license plate on a vehicle are described. The mounting system of the invention includes a mounting bracket having a horizontal base portion adapted to extend underneath an overhanging portion of a vehicle, such as a bumper or grillwork. The base portion includes cut-outs and tabs, if required, to accommodate mounting to a particular model of truck, automobile or bus or an adjustment system to allow mounting holes to be moved so as to accommodate mounting on a variety of vehicles. Fasteners adapted to interact with holes in the horizontal underside of the portion of the vehicle to which the bracket will be mounted are provided. These fasteners are installed without tools and can be released without tools, if desired. The mounting system can be made either removable by hand or more permanent, being installed by hand but requiring tools and effort to remove it.