Currently the only way to speak at commission meetings and county school board meetings is if you are allowed to be on the agenda in advance with disclosure of the subject you want to address.
During county commission meetings if a commissioner from your district will recognize you, then you are allowed to speak.
The Home Rule Charter defines that citizens are to be recognized to speak before or after meetings, and in commissioner meetings, to address the current topic under consideration before the call for vote. Citizens will have better opportunity to have their voices heard.
County residents only have to come to the meeting and they will be recognized to speak if they wish.
Found at Section 2.11.H. & I. Meetings and Quorum.