California Code, Vehicle Code - VEH § 2503

(a) Licenses issued by the commissioner shall not be transferable.A change in ownership or control of the licensed activity shall render the existing license null and void and a new license shall be required. A change in ownership or control includes, but is not limited to, a change in corporate status, or a stock transfer of shares possessing more than 50 percent of the voting power of the corporation.A change in ownership or control does not include the addition or deletion of partners, officers, directors, or board members comprising 50 percent or less ownership or control of the licensed activity if both of the following are complied with:

(b) In the event of a change of name, not involving a change of ownership or control, the license shall be returned to the commissioner for cancellation, and a new license application form shall be submitted. The commissioner shall cancel the returned license and issue a new license for the unexpired term without a fee.

(c) In the event of loss, destruction, or mutilation of a license issued by the commissioner, the person to whom it was issued may obtain a duplicate upon paying a fee of five dollars ($5). Any person who loses a license issued by the commissioner and who, after obtaining a duplicate, finds the original license, shall immediately surrender the original license to the commissioner.

(d) Any change of address or relocation of a licensed service shall be reported to the commissioner within 10 days.