Prior to, or at the time fixed, for hearing, the board of supervisors, or any city council eligible to file a request for hearing, and not a party to the original request for hearing, may intervene by filing a written notice of intervention with the secretary of the district. Any such intervener shall be entitled to be heard and introduce evidence.
Source:
Section 101204, https://leginfo.legislature.ca.gov/faces/codes_displaySection.xhtml?lawCode=PUC§ionNum=101204..