N.J. Stat. § 43:15A-63
Any veteran in office, position or employment of this State or of a county, municipality, school district or public agency who on January 2, 1955 is in office, position or employment not covered by a retirement system to which such employer and its employees make monetary contributions, other than the old-age and survivors' insurance provisions of Title II of the Federal Social Security Act, unless he shall have notified the board of trustees that he does not desire to become a member, shall be a member of the Public Employees' Retirement System as of January 2, 1955; and any veteran taking office, position or employment in the service of this State or of a county, municipality, school district or public agency, which office, position or employment is not covered by such a retirement system after January 2, 1955, shall be a member of the Public Employees' Retirement System. The employer of such public employee veterans shall make such contributions to the retirement system on behalf of all service rendered by such employees in office, position or employment of this State or of any county, municipality, school district or public agency as are required of employers under the provisions of this act.
N.J.S. § 43:15A-63