N.J. Stat. § 40:80-11
Upon the adoption of this subtitle and upon the organization of the municipal council elected hereunder the governing body or bodies and all other executive and legislative bodies shall be ipso facto abolished, and the terms of all councilmen, aldermen, commissioners or trustees and all other elective officers shall immediately cease and determine. The term of all appointive officials and subordinates shall cease and determine at the end of four weeks after the organization of the municipal council, but the municipal council may by resolution terminate the employment of any such persons at any time during said four weeks' period but the term of such officials and subordinates shall continue until their successors are appointed and qualify. Nothing herein contained shall be construed to terminate the term of office of any member of the board of education, trustees of the free public library, policeman, fireman, or other employee of any police or fire department, veteran of any war, or official or employee now protected by any tenure of office law. If the municipality is operating under the provisions of Title 11, Civil Service, at the time of the adoption of this subtitle, nothing in this subtitle contained shall affect the tenure of office of any person holding any position or office coming within the provisions of said Title 11 as it applies to said officers and employees.
N.J.S. § 40:80-11