N.J. Stat. § 43:15C-11
Any person entitled to become a participant in the retirement program shall not be allowed any of the group life insurance and disability benefits if on the date of filing an application for participation the person is 60 or more years of age, or if the person makes application for participation in the retirement program beyond the year after first becoming eligible for participation, regardless of age, unless the participant furnishes satisfactory evidence of insurability and on the effective date of participation is actively at work and performing all regular duties at the customary place of employment.
The effective date of coverage for such benefits shall be the first day of the month which immediately follows the date when such evidence is determined to be satisfactory.
Such evidence of insurability shall not be required of any person enrolling in the retirement program upon transfer from another State-administered retirement system, if such retirement system provided a benefit of a similar nature and the transferring person was covered by such a benefit at the time of the transfer. If such transferring person was not covered by such a benefit at the time of the transfer, the person may be allowed the benefit under the group policy or policies; however, any such person shall furnish satisfactory evidence of insurability if he had been unable or failed to give such evidence as a member of the retirement system from which the person transferred. Such evidence of insurability shall not be required of any member of the Teachers' Pension and Annuity Fund, Police and Firemen's Retirement System, State Police Retirement System, or the Public Employees' Retirement System who is enrolling in the retirement program pursuant to paragraph (5) of subsection a. of section 2 of P.L. 2007, c. 92(C.43:15C-2) as amended by section 12 of P.L. 2007, c. 103 and section 7 of P.L. 2010, c. 1, if such retirement system provides a benefit of a similar nature and the participant is covered by such a benefit at the time of enrollment in the program.
Any person who must furnish satisfactory evidence of insurability under the provisions of this section and who ceases to be a participant in the retirement program without such evidence having been given shall continue to be subject to the same requirement if the person subsequently becomes a participant.
N.J.S. § 43:15C-11