In CA, a Noble can be registered as a "special construction vehicle" and you can find details of the process on the DMV website
Originally Posted by msmillerus
Although it takes a little time and effort, the process is pretty straight forward. The key step is getting one of the 500 sequence numbers that become available on the first working day of each calendar year. FYI, the first day they were available in 2005 was January 3rd, and all 500 numbers were gone by the January 4th, so the demand is pretty high. You must have basic information (including the manufacturer's MSO for your car) and forms filled out before you apply for the sequence number, but the car does not have to be inspected or running at the time you apply for a sequence number--that comes later. I know of at least 5 Nobles (including my own) that have been successfully registered in CA using this process.
'67 Lotus Elan S3 DHC (owned since 1970)
'17 Ford Focus RS