For purposes of this division, whenever the term “firefighter,” “firefighting member,” and “member of a fire department” is used, the term shall include, but shall not be limited to, unless the context expressly provides otherwise, a person engaged in providing firefighting services who is an apprentice, volunteer, or employee on a partly paid or fully paid basis.
Source:
Section 3211.5, https://leginfo.legislature.ca.gov/faces/codes_displaySection.xhtml?lawCode=LAB§ionNum=3211.5..