Most Common Equipment Violations - CHP 916 (Rev. 2/1991)
Cars, Trucks and Motorcycles
...

Does Your Vehicle Measure Up?

1. Registration Papers Not Available (4454a V.C.)
2. Horn Required (27000 V.C.)


3. No Mirror On Left (26709a V.C.)
4. Damaged or Inoperative Rear Lighting (24252 V.C.)
5. Tape on Taillamps (26101 V.C.)


6. Fuel Cap Missing (27155 V.C.)
7. Tinted Forward Windows (26708a V.C.)
8. Red or Amber Bug Screens or Covered Headlamps (26701 V.C.) CCR Title 13 Section 692 (24012 V.C.)


9. No Windshield Wipers (26706a V.C.)
10. Off Highway Lights - not covered or too many (24411 V.C.)
11. Headlamps Out (24400 V.C.)
12. Fog Lights - improper height / out of adjustment (24403 V.C.)
13. No Front Plate (5200 V.C.)

14. Expired Registration (4000a V.C.)
15. Aftermarket Flashing Brake Lights (26100 V.C.)

16. Modulating Headlamps During Hours of Darkness (25251.2 V.C.)
17. Passenger in Front of Driver (27800 V.C.)
18. No Footrests Provided for Passenger (27800 V.C.)
19. Muffler Exceeding Noise Limits (27202 V.C.)

Source...
http://www.chp.ca.gov/html/equipviolations.html