California Code, Vehicle Code - VEH § 38504.1

(1) For a first conviction, the court shall either impose a fine of one hundred twenty-five dollars ($125) or order the person to take or retake and complete an all-terrain vehicle safety training course pursuant to Section 38501. If ordered to take or retake and complete the safety training course, the person shall provide the court a copy of the all-terrain vehicles safety certificate issued as a result of that completion.

(2) For a second conviction, a fine of not less than one hundred twenty-five dollars ($125) nor more than two hundred fifty dollars ($250).

(3) For a third or any subsequent conviction, a fine of not less than two hundred fifty dollars ($250) nor more than five hundred dollars ($500).