California Code
ARTICLE 3 - Registration
Section 1655.

1655. Any failure on the part of any person holding such license to register it as directed for a period of six months after its issuance shall ipso facto work a forfeiture of his license, and it shall not be restored except upon the written application and payment to the board of the fee provided for restoration of license.

(Added by Stats. 1937, Ch. 415.)