New Jersey Statutes Title 39. Motor Vehicles and Traffic Regulation 39 § 12-7

a. The licensee has made a material false statement or concealed a material fact in connection with the application for a license or the renewal thereof;

b. The licensee or any partner or officer of the licensee has been convicted of a crime;

c. The licensee has failed to comply with any of the provisions of this act or any of the rules and regulations of the director establishing instructional standards and procedures;

d. The licensee or any partner or officer of such licensee has been guilty of fraud or fraudulent practices in relation to the business conducted under the license, or guilty of inducing another person to resort to fraud or fraudulent practices in relation to securing for himself or another the license to drive a motor vehicle or motorcycle;

e. The licensee has knowingly employed, as an instructor, a person who has been convicted of a crime or has retained such a person in such employ after knowledge of his conviction;  or

f. The licensee has failed to maintain satisfactory insurance to meet damage claims required by section three of this act.  1