Key means a physical device or an electronic code which, when inserted into the starting system (by physical or electronic means), enables the vehicle operator to activate the engine or motor. This standard applies to passenger cars, multipurpose passenger vehicles, trucks, buses, school buses, motorcycles and low-speed vehicles.īacking event means an amount of time which starts when the vehicle's direction selector is placed in reverse, and ends at the manufacturer's choosing, when the vehicle forward motion reaches:Ĭonvex mirror means a mirror having a curved reflective surface whose shape is the same as that of the exterior surface of a section of a sphere.Įffective mirror surface means the portions of a mirror that reflect images, excluding the mirror rim or mounting brackets.Įnvironmental test fixture means a device designed to support the external components of the rear visibility system for testing purposes, using any factory seal which would be used during normal vehicle operation, in a manner that simulates the on-vehicle component orientation during normal vehicle operation, and prevents the exposure of any test conditions to portions of the external component which are not exposed to the outside of the motor vehicle.Įxternal component means any part of the rear visibility system which is exposed to the outside of the motor vehicle. The purpose of this standard is to reduce the number of deaths and injuries that occur when the driver of a motor vehicle does not have a clear and reasonably unobstructed view to the rear. This standard specifies requirements for rear visibility devices and systems.
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