9. Each stop lamp shall:(a) be illuminated upon application of the service brake;
(b) have a light intensity at all test points set forth in Table II of not less than 3 times the intensity of the tail lamp at the corresponding test points; and
(c) when not combined optically with a tail lamp, be separated by a minimum edge-to-edge distance of not less than 75 mm.
Table I
Headlamps
Test Minimum
Point Photometric
Position in Candela
Degrees Requirements
½ D-V 4,000
1½ D-6L à 6R 2,000
1½ D-9L à 9R 1,000
3 D-15L à 15R 1,000
Table II
Rear lamps
Test Minimum
Point Photometric
Position in Candela
Degrees Requirements
IOU-45L 0.25
V 0.25
45R 0.25
H-45L 0.25
30L 0.25
20L 0.25
10L 0.25
V 0.25
10R 0.25
20R 0.25
30R 0.25
45R 0.25
10D-45L 0.25
V 0.25
45R 0.25