sentences:  In the United States, if required by the permit of the issuing authority, the owner of an Oversize Load often must hire a Pilot Car (flag or escort car) before the load can be moved on a public roadway.An Oversize Load may exceed one or all normal vehicle dimensions of weight, height, length, width and/or extend beyond the commonly-recognized perimeter of the Load vehicle.All Pilot Cars in an individual state must be uniformly identified with required durable, fade-resistant yellow OVERSIZE LOAD sign (on rooftop or the car’s position bumper) and amber flashing or rotating lights that are visible 360° and at least away.