717.1 The headlamp or headlamps on each motor-driven cycle or motorized bicycle, whether of the single-beam or multiple-beam type, shall comply with the requirements and limitations of this section.

717.2 Each headlamp on a motor-driven cycle or motorized bicycle shall be of sufficient intensity to reveal a person or a vehicle as follows:

1. (a) At a distance of not less than one hundred feet (100 ft.) when the motor-driven cycle or motorized bicycle is operated at any speedless than twenty-five miles per hour (25 mph);
2. (b) At a distance of not less than two hundred feet (200 ft.) when the motor-driven cycle or motorized bicycle is operated at a speed of twenty-five miles per hour (25 mph) or more; and
3. (c) At a distance of not less than three hundred feet (300 ft.) when the motor-driven cycle or motorized bicycle is operated at a speed of thirty-five miles per hour (35 mph) or more.

717.3 If a motor-driven cycle or motorized bicycle is equipped with a multiple-beam headlamp or headlamps, it shall meet the following requirements:

1. (a) The upper beam shall meet the minimum requirements of § 717.2 and shall not exceed the limitations set forth in § 715; and
2. (b) The lowermost beam shall meet the requirements applicable to a lowermost distribution of light as set forth in § 715.

717.4 If a motor-driven cycle or motorized bicycle is equipped with a single-beam lamp or lamps, the lamp(s) shall be so aimed that when the vehicle is loaded none of the high-intensity portion of light, at a distance of twenty-five feet (25 ft.) ahead shall project higher than the level of the center of the lamp from which it comes.

717.5 Each motor-driven cycle and motorized bicycle equipped with multiple-beam headlamp(s) operating on the highways of the District when lights are required shall use the lower or city-driving beam.

SOURCE: Regulation No. 72-13 effective June 30, 1972, 32 DCRR §6.221 Special Edition; as amended by § 2(u) of the District of Columbia Motorized Bicycle Act, D.C Law 1-110 23

DCR 4954 (January 21, 1977).