本文件适用于在现场和检查站使用的设备的要求，该设备用于机械瞄准前照灯单元的瞄准和检查。本文件的目的是提供一个实验室试验程序，以确定被测装置是否能够使用其瞄准垫或瞄准/座面准确定位前照灯单元，并将其使用精度保持在本文件指定的公差范围内。

This document applies to the requirements of a device used in the field and inspection stations to aim and check aim of mechanically aimable headlamp units.The purpose of this document is to provide a laboratory test procedure to determine whether the devices under test are capable of accurately positioning headlamp units using their aiming pads or aiming/seating plane and maintaining their accuracy in service within the tolerances designated in this document.