California Code, Vehicle Code - VEH § 42001.25

(a) By a fine of one hundred dollars ($100).

(b) For a second infraction occurring within one year of a prior infraction that resulted in a conviction, a fine of two hundred dollars ($200).

(c) For a third or any subsequent infraction occurring within one year of two or more prior infractions that resulted in convictions, a fine of three hundred dollars ($300).