Steve's (PANAVIA) writing isn't CA law, and it may not be current to 2011, but I'll take a quote from it:
"Let them know you are asking to be tested as a 1965 motor vehicle, this will
dispense with the needs for “Side Marker Lights” and “Reverse Lights”, which were required in 1968 and 1966 respectively."
http://www.newmustangranch.com/SPCNS.pdf