N.J. Admin. Code § 13:21-16.5
Notwithstanding the fees established under N.J.S.A. 39:3-29.7, a nondriver identification card is available for no fee to a homeless person, as defined by N.J.S.A. 39:3-29.7, who submits proof of temporary residence satisfactory to the chief administrator through a social worker or coordinator of an emergency shelter for the homeless where the homeless person has been temporarily residing. The proof of temporary residence shall be in the form of a letter from a social worker or emergency shelter coordinator, on the social worker's or emergency shelter's official letterhead, signed by an authorized social worker or emergency shelter coordinator, and dated no more than 10 days prior to the homeless person's application to the Commission for a no-fee nondriver identification card. The letter must clearly state that the applicant is "without a domicile and is unable to secure permanent and stable housing," and must include the temporary residence of the applicant.
N.J. Admin. Code § 13:21-16.5