N.J. Stat. § 30:4-165.5
Whenever a minor has been admitted to functional or other services provided by the Division of Developmental Disabilities on application as provided herein and has not been discharged therefrom, the commissioner shall, not less than six months nor more than 18 months prior to the 18th birthday of said person, cause him to be examined to ascertain whether it appears that such person will need a guardian on attainment of his majority.
If the commissioner anticipates that such person will need a guardian, the commissioner or his designated agent shall apply to the Superior Court in the same manner as provided in section 1 of P.L. 1970, c.289 (C.30:4-165.7) for appointment of a guardian unless another application is pending.
In the event that no guardian has been appointed for a person who commences receiving functional or other services after the effective date of this amendatory and supplementary act and who has attained age 18, and if the commissioner has ascertained that such person appears to need a guardian, then the commissioner shall apply to the Superior Court in the same manner as provided in section 1 of P.L. 1970, c.289 (C.30:4-165.7) for appointment of a guardian unless another application is pending.
The commissioner shall also promptly advise in plain language any parent, spouse, relative, or other interested person of his findings and of the parent's or person's right to participate in the process of an adjudication and to be considered for appointment as a guardian. The commissioner may offer to these persons assistance to facilitate their appointments as guardians unless he has reason to question their fitness to serve.
N.J.S. § 30:4-165.5