Double-filament sealed beam headlamp units shall be aimed on low beam with the left edge of the high intensity zone on a vertical line straight ahead of the lamp center and with the top edge of the high intensity zone at the level of the lamp center.
Cal. Code Regs. Tit. 13, § 677
Note: Authority cited: Section 26103, Vehicle Code. Reference: Sections 24012 and 26103, Vehicle Code.