Cal. Government Code § 11122.5

(a) As used in this article, “meeting” includes any congregation of a majority of the members of a state body at the same time and place to hear, discuss, or deliberate upon any item that is within the subject matter jurisdiction of the state body to which it pertains. (b) (1) A majority of the members of a state body shall not, outside of a meeting authorized by this chapter, use a series of communications of any kind, directly or through intermediaries, to discuss, deliberate, or take action on any item of business that is within the subject matter of the state body. (2) Paragraph (1) shall not be construed to prevent an employee or official of a state agency from engaging in separate conversations or communications outside of a meeting authorized by this chapter with members of a legislative body in order to answer questions or provide information regarding a matter that is within the subject matter jurisdiction of the state agency, if that person does not communicate to members of the legislative body the comments or position of any other member or members of the legislative body. (c) The prohibitions of this article do not apply to any of the following: (1) Individual contacts or conversations between a member of a state body and any other person that do not violate subdivision (b). (2) (A) The attendance of a majority of the members of a state body at a conference or similar gathering open to the public that involves a discussion of issues of general interest to the public or to public agencies of the type represented by the state body, if a majority of the members do not discuss among themselves, other than as part of the scheduled program, business of a specified nature that is within the subject matter jurisdiction of the state body. (B) Subparagraph (A) does not allow members of the public free admission to a conference or similar gathering at which the organizers have required other participants or registrants to pay fees or charges as a condition of attendance. (3) The attendance of a majority of the members of a state body at an open and publicized meeting organized to address a topic of state concern by a person or organization other than the state body, if a majority of the members do not discuss among themselves, other than as part of the scheduled program, business of a specific nature that is within the subject matter jurisdiction of the state body. (4) The attendance of a majority of the members of a state body at an open and noticed meeting of another state body or of a legislative body of a local agency as defined by Section 54951, if a majority of the members do not discuss among themselves, other than as part of the scheduled meeting, business of a specific nature that is within the subject matter jurisdiction of the other state body. (5) The attendance of a majority of the members of a state body at a purely social or ceremonial occasion, if a majority of the members do not discuss among themselves business of a specific nature that is within the subject matter jurisdiction of the state body. (6) The attendance of a majority of the members of a state body at an open and noticed meeting of a standing committee of that body, if the members of the state body who are not members of the standing committee attend only as observers.