Cal. Veh. Code § 5004.5
Notwithstanding any other provision of this code, any owner of a motorcycle manufactured in the year 1942 or prior thereto shall, upon application in the manner and at the time prescribed by the department, be issued special license plates for the motorcycle. The special license plates assigned to such motorcycles shall run in a separate numerical series. An additional fee of fifteen dollars ($15) shall be charged for the initial issuance of the special license plates. Such plates shall be permanent and shall not be required to be replaced. If such special license plates become damaged or unserviceable in any manner, replacement for the plates may be obtained from the department upon proper application and upon payment of such fee as is provided for in Section 9265. Except as otherwise provided in this section, such motorcycles shall be subject to the same annual registration fees and provisions of law as are other motorcycles.
All revenues derived from the fees provided for in this section above actual costs of the production and issuance of the special plates for motorcycles, or the replacement thereof, shall be deposited in the California Environmental License Plate Fund by the department.
Ca. Veh. Code § 5004.5