Cal. Code Regs. tit. 13, § 712
(a) Driving Lamps. Driving lamps shall meet the photometric requirements in Table I when the lamps are aimed as specified in Article 6 of this subchapter.
TABLE I. PHOTOMETRIC REQUIREMENTS FOR DRIVING LAMPS
Test point coordinates
Cd
Vertical
Horizontal
Max
Min
3U
3L-3R
5,000
--
2U
3L-3R
8,000
--
IU
3L-3R
25,000
--
H
V
50,000
20,000
H
3L-3R
--
10,000
1D
6L-6R
--
3,700
2D
6L-6R
--
2,000
Photometric tests shall be made with the filament in the design position. For unsealed and semisealed driving and passing lamps, tests shall also be made in the out-of-focus positions listed in Section 654 of this title. The luminous intensity of a single lamp tested as specified in Article 4 of this subchapter shall be as follows with a reaim tolerance of 0.25 deg allowed at any test point:
Note: Authority cited: Section 26103, Vehicle Code. Reference: Sections 24012 and 26103, Vehicle Code.
1. Amendment of first paragraph and subsection (b) filed 6-12-95; operative 7-12-95 (Register 95, No. 24).
2. Amendment of subsection (b) filed 7-16-2004; operative 8-15-2004 (Register 2004, No. 29).