The Department shall issue a continuing license to a person holding a Delaware certificate issued by an education certifying board prior to July 13, 1971, or upon the expiration of a professional status certificate or standard certificate issued by the Department. Upon application, the Department shall issue an advanced license to a person holding current National Board for Professional Teaching Standards certification and a current Delaware certificate as of May 3, 2000.

72 Del. Laws, c. 294, § ?2; 74 Del. Laws, c. 14, § ?5;