政策法规现行有效美国跨境陆运

§ 393.17 Lamps and reflectors—combinations in driveaway-towaway operation.

效力	法规类型	发布日期	生效日期	发文机构
现行有效	部门规章	2026-02-19	2026-03-23	Code of Federal Regulations (CFR) - Transportation (Title 49)

发布02-19

生效03-23

摘要总结AI 辅助解读

本条款规定了美国联邦法规中关于“甩挂/拖挂组合车辆”（driveaway-towaway operation）在行驶过程中的灯光与反光器配置标准。核心要求包括：牵引车需配备前照灯、转向灯及侧标志灯；被拖车辆（尤其是最后一辆）需严格配置尾灯、刹车灯、转向灯、示廓灯及反光器，且宽度超过80英寸时需加装3盏识别灯。此外，针对移动结构拖车（如大型房车或特种厢式车），根据是否持有禁止夜间行驶的特别许可证，设定了差异化的灯光豁免或强制要求。该规定直接影响跨境陆运中特种车辆运输的合规性检查。

A combination of motor vehicles engaged in driveaway-towaway operation must be equipped with operative lamps and reflectors conforming to the rules in this section.

(a) The towing vehicle must be equipped as follows:

- (1) On the front, there must be at least two headlamps, an equal number at each side, two turn signals, one at each side, and two clearance lamps, one at each side.

- (2) On each side, there must be at least one side-marker lamp, located near the front of the vehicle.

- (3) On the rear, there must be at least two tail lamps, one at each side, and two stop lamps, one at each side.

(b) Except as provided in paragraph (c) of this section, the rearmost towed vehicle of the combination (including the towed vehicles of a tow-bar combination, the towed vehicle of a single saddle-mount combination, and the rearmost towed vehicle of a double or triple saddle-mount combination) or, in the case of a vehicle full-mounted on a saddle-mount vehicle, either the full-mounted vehicle or the rearmost saddle-mounted vehicle must be equipped as follows:

- (1) On each side, there must be at least one side-marker lamp, located near the rear of the vehicle.

- (2) On the rear, there must be at least two tail lamps, two stop lamps, two turn signals, two clearance lamps, and two reflectors, one of each type at each side. In addition, if any vehicle in the combination is 80 inches or more in overall width, there must be three identification lamps on the rear.

(c) If the towed vehicle in a combination is a mobile structure trailer, it must be equipped in accordance with the following lighting devices. For the purposes of this part, mobile structure trailer means a trailer that has a roof and walls, is at least 10 feet wide, and can be used off road for dwelling or commercial purposes.

- (1) When the vehicle is operated in accordance with the terms of a special permit prohibiting operation during the times when lighted lamps are required, it must have on the rear—

(i) Two stop lamps, one on each side of the vertical centerline, at the same height, and as far apart as practicable;

- (ii) Two tail lamps, one on each side of the vertical centerline, at the same height, and as far apart as practicable;

- (iii) Two red reflex reflectors, one on each side of the vertical centerline, at the same height, and as far apart as practicable; and

- (iv) Two turn signal lamps, one on each side of the vertical centerline, at the same height, and as far apart as practicable.

- (2) At all other times, the vehicle must be equipped as specified in paragraph (b) of this section.

(d) An intermediate towed vehicle in a combination consisting of more than two vehicles (including the first saddle-mounted vehicle of a double saddle-mount combination and the first and second saddle-mount vehicles of a triple saddle-mount combination) must have one side-marker lamp on each side, located near the rear of the vehicle.

ER15AU05.017

ER15AU05.018

ER15AU05.019

(49 U.S.C. 304, 1655; 49 CFR 1.48(b) and 301.60)

[40 FR 36126, Aug. 19, 1975, as amended at 47 FR 47837, Oct. 28, 1982; 70 FR 48044, Aug. 15, 2005; 77 FR 59828, Oct. 1, 2012; 80 FR 59075, Oct. 1, 2015]