Section 682 - School Bus Warning LampsSchool bus warning lamps shall be aimed to comply with the following requirements:
(a) Visual Aim. When aimed visually by means of an aiming screen or optical aiming machine, the lamps shall have the center of the high intensity zone on a vertical line straight ahead of the lamp center and on a horizontal line not higher than the level of the lamp center nor lower than 10 cm (4 in.) below this level.(b) Mechanical Aim. When aimed with a mechanical aiming machine, warning lamps with three mechanical aiming pads on the lenses shall be between 0 and 4 down on the up and down scale and at 0 on the left and right scale of the aimer.Cal. Code Regs. Tit. 13, § 682
Note: Authority cited: Section 26103, Vehicle Code. Reference: Sections 24012 and 26103, Vehicle Code.