Use of open fire or burning under permit within an area closed by proclamation pursuant to the provisions of Section 4423.1, except as provided in Sections 4423.2, 4423.3, and 4423.4, is a misdemeanor and any person upon conviction thereof shall be punished by a fine of not less than one hundred dollars ($100). No part of such fine shall be suspended. The court may permit the fine prescribed by this section to be paid in installments if the court determines that the defendant is unable to pay the fine in one lump sum.
Source:
Section 4423.5, https://leginfo.legislature.ca.gov/faces/codes_displaySection.xhtml?lawCode=PRC§ionNum=4423.5..