N.J. Stat. § 3B:12-20
When any minor, who is of an age that the consent of his parent or guardian is necessary to enable him to enlist in the armed forces of the United States, desires to enlist in the armed forces of the United States and has no parent or guardian entitled to his custody and control available to sign the written consent required for the enlistment, letters of special guardianship may be granted by the surrogate's court of the county in which the minor resides, or the Superior Court, empowering the special guardian to give his written consent to the enlistment but limiting his authority and duty to that purpose. The guardian shall give consent only if he deems the enlistment advisable. A bond shall not be required from the guardian, and neither the clerk of the Superior Court nor the surrogate shall collect any fee or charge in connection with the action for the appointment of the guardian.
N.J.S. § 3B:12-20