Meetings may be closed in the following situations:
1. The proceeding is concerned with formally granting or denying a license, permit or certificate to engage in a business, occupation or profession or with a disciplinary proceeding involving a member of a business, occupation or profession.
2. The portion of a meeting of a quasi-judicial agency involving proceedings of a judicial nature relating to named parties rather than affecting the public or a class generally.
3. The meeting involves a matter governed by the State Administrative Procedure Act (which applies to state agencies only and has its own procedures).
4. The meeting involves collective bargaining with employees' union or the portion of a meeting concerning the strategy or position to be taken by the governing body during collective bargaining, professional negotiations, grievance or mediation proceedings, or involves reviewing the proposals made in such negotiations or proceedings while they are in progress.
5. But a governing body may not conduct business in a closed meeting other than the particular business for which closure is authorized. Thus, for example, even though discussions concerning a collective bargaining agreement are exempt, the act is violated if the governing body meets in a closed session to consider ways of financing personnel costs associated with a proposed collective bargaining agreement.
6. If members of the public create a disturbance which interrupts the meeting, they may be ejected; but members of the press may remain so long as they do not participate in the disruption.