§ 393.80 Rear-vision mirrors.
发布02-19
生效03-23
摘要总结AI 辅助解读
美国联邦法规第49篇§393.80规定，所有巴士、卡车及牵引车必须配备两个符合FMVSS No. 111标准的外置后视镜。该条款明确了不同制造年份车辆的合规要求：1981年前生产的车辆若更换镜子需符合当时标准；特定结构卡车可仅装驾驶员侧镜子；拖车作业有单独豁免。此规定直接影响跨境陆运车辆的设备准入与日常检查合规性。
- (a) Every bus, truck, and truck tractor shall be equipped with two rear-vision mirrors, one at each side, firmly attached to the outside of the motor vehicle, and so located as to reflect to the driver a view of the highway to the rear, along both sides of the vehicle. All such regulated rear-vision mirrors and their replacements shall meet, as a minimum, the requirements of FMVSS No. 111 (49 CFR 571.111) in force at the time the vehicle was manufactured.
- (b) Exceptions. (1) Mirrors installed on a vehicle manufactured prior to January 1, 1981, may be continued in service, provided that if the mirrors are replaced they shall be replaced with mirrors meeting, as a minimum, the requirements of FMVSS No. 111 (49 CFR 571.111) in force at the time the vehicle was manufactured.
- (2) Only one outside mirror shall be required, which shall be on the driver's side, on trucks which are so constructed that the driver has a view to the rear by means of an interior mirror.
- (3) In driveway-towaway operations, the driven vehicle shall have at least one mirror furnishing a clear view to the rear.
[48 FR 57139, Dec. 28, 1983, as amended at 66 FR 49874, Oct. 1, 2001]