Every person convicted of an infraction for a violation of Section 21806 shall be punished as follows:
(a)
For a first conviction, by a fine of not less than one hundred dollars ($100) nor more than two hundred fifty dollars ($250).(b)
For a second conviction within one year, by a fine of not less than one hundred fifty dollars ($150) nor more than five hundred dollars ($500).(c)
For a third or any subsequent conviction within three years, by a fine of not less than two hundred fifty dollars ($250) nor more than five hundred dollars ($500).
Source:
Section 42001.12, https://leginfo.legislature.ca.gov/faces/codes_displaySection.xhtml?lawCode=VEH§ionNum=42001.12..