3. Faculty members at a county college shall be under tenure in their academic rank, but not in any administrative position, during good behavior, efficiency and satisfactory professional performance, as evidenced by formal evaluation and shall not be dismissed or reduced in compensation except for inefficiency, unsatisfactory professional performance, incapacity or other just cause and then only in the manner prescribed by subarticle B of article 2 of chapter 6 of Title 18A of the New Jersey Statutes, after employment in such college or by such board of trustees for
a. 5 consecutive calendar years; or
b. 5 consecutive academic years, together with employment at the beginning of the next academic year; or
c. the equivalent of more than 5 academic years within a period of any 6 consecutive academic years.