§ 393.16 Lamps and reflectors, pole trail

ers.

Every pole trailer shall be equipped as follows:

(a) On the rear, two tail lamps, one at each side; two stop lamps, one at each side; two turn signals, one at each side; two reflectors, one at each side, placed to indicate extreme width of the pole trailer; three identification lamps mounted on the vertical centerline of the pole trailer or in lieu thereof mounted on the vertical centerline of the rear of the cab of the truck

tractor drawing the pole trailer and higher than the load being transported;

(b) On the rear of projecting loads. (See § 393.18.)

(c) On each side, one amber sidemarker lamp at or near the front of the load; one amber reflector at or near the front of the load; on the rearmost support for the load, one combination marker lamp showing amber to the front and red to the rear and side, mounted to indicate maximum width of the pole trailer; on the rearmost support for the load, one red reflector.

Lamps may be combined as permitted by

§ 393.17 Lamps and reflectors-combinations in driveaway-towaway operation. 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 vehicle or 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 under § 392.30, 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.

$393.18 Lamps on motor vehicles with projecting loads.

Any motor vehicle transporting a load which extends beyond the width or having projections beyond the rear of such vehicle shall be equipped with the following lamps in addition to other required lamps. (See § 393.87 for flags on such vehicles.)

(a) Loads projecting beyond sides of motor vehicles. (1) The foremost edge of the projecting load at its outermost extremity shall be marked with an amber lamp visible from the front and side;

(2) The rearmost edge of the projecting load at its outermost extremity shall be marked with a red lamp visible from the rear and side;

(3) If any portion of the projecting load extends beyond both the foremost and rearmost edge, it shall be

marked with an amber lamp visible from the front, side, and rear;

(4) If the projecting load does not measure over 3 feet from front to rear, it shall be marked with an amber lamp visible from the front, side, and rear except that if the projection is located at or near the rear, it shall be marked by a red lamp visible from the front, side, and rear.

(b) Projections beyond rear of motor vehicles. Motor vehicles transporting loads which extend over four feet beyond the rear of the motor vehicle or which have tailboards or tailgates extending over 4 feet beyond the body shall have these projections marked:

(1) On each side of the projecting load one red lamp, visible from the side located so as to indicate maximum overhang.

(2) On the rear of the projecting load two red lamps, visible from the rear, one at each side and two red re