“Employee” shall mean a person who has been continuously employed by the State for 3 full calendar months immediately preceding the first day of any given month (exclusive of legal holidays and allowable leave) and who works the regularly scheduled full-time hours of the employing agency, or at least 30 or more hours per week, or 130 hours per month (with allowable interruptions) throughout the year. “Employee” shall include all elected and appointed state officials.