As long as you have the title that goes with the frame. California also uses and checks the engine ID number.
kk
Edit: Although when I moved here from Colo my R90/6 had a '74 frame and '76 engine. The '76 had been wrecked and reframed with the '74. I got it from a dealer so everything was ok with the DMV in both states. It is possible that it may have had a salvage title, I didn't pay a lot of attention.
kk