California Code, Vehicle Code - VEH § 42001.17

(a) For the first infraction, by a fine of one hundred dollars ($100).

(b) For a second infraction for a violation of Section 21951 occurring within one year of a prior infraction of violating of that section that resulted in a conviction, by a fine not exceeding two hundred dollars ($200), as provided in paragraph (2) of subdivision (a) of Section 42001.

(c) For a third or any subsequent infraction for a violation of Section 21951 occurring within one year of two or more prior infractions of violating that section that resulted in convictions, by a fine not exceeding two hundred fifty dollars ($250), as provided in paragraph (3) of subdivision (a) of Section 42001.