Cal. Gov't Code § 54953.8.3
(a) A legislative body of a local agency may conduct a teleconference meeting pursuant to Section 54953.8 if, during the teleconference meeting, at least a quorum of the members of the legislative body participates in person from a singular physical location clearly identified on the agenda, which location shall be open to the public and situated within the boundaries of the territory over which the local agency exercises jurisdiction, provided that the legislative body complies with the requirements of Section 54953.8 and all of the following additional requirements:
(3)
(A) The provisions of this subdivision shall not serve as a means for any member of a legislative body to participate in meetings of the legislative body solely by teleconference from a remote location for just cause for more than the following number of meetings, as applicable:
(c) For purposes of this section, “just cause” means any of the following: