The applicant must send written notice to all of the above within 20 days of receiving the contact information from the Planning Commission. If a hearing is required, the notice shall also comply with all applicable requirements of Pennsylvania Statutes relating to notices of public hearings.On average, annual meetings are given 30 days' notice before the meeting. Any person to fill a vacancy in any elected office. Facts: Bylaws require at least five days notice of a special meeting of the executive board, The president can call special meetings. To address this issue, Pennsylvania law requires agencies to give advance notice of their meetings. Every such notice shall state the time and place of the meeting together with the items to be considered at such meeting. All voting shareholders must be given written notice of the meeting, but it is not required that all voting shareholders attend the meeting.