Health and Safety Code section 13004

Every person is guilty of a misdemeanor who harvests grain or causes it to be harvested by means of a combined harvester, header, or stationary threshing machine, or who bales hay by means of a hay press, or harvests by means of a mechanical harvester other agricultural crops which are flammable at the time of harvest, unless he keeps at all times in a convenient place upon each machine or press, one backpack or pump-type water extinguisher of not less than four-gallon capacity fully equipped, filled with water and ready for immediate use.

Source: Section 13004, https://leginfo.­legislature.­ca.­gov/faces/codes_displaySection.­xhtml?lawCode=HSC§ionNum=13004.­ (updated Jan. 1, 1968; accessed Jun. 25, 2025).

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Verified:
Jun. 25, 2025

§ 13004's source at ca​.gov