N.J. Stat. § 39:4-14.3i
In addition to the requirements of section 2 of P.L. 1975, c. 250 (C. 39:4-14.3) and P.L. 1977, c. 267 (C. 39:4-14.3a et seq.), no motorized bicycle as defined by R.S. 39:1-1 shall be operated on the public highways or on public lands of this State unless registered by the owner thereof as provided by this act. The Director of the Division of Motor Vehicles in the Department of Law and Public Safety is authorized to grant a registration to the owner of a motorized bicycle who is at least 15 years of age, provided that the application for registration has been properly made, the registration fee has been paid, and the motorized bicycle is of a type approved by the director.
The form and contents of the registration certificate shall be prescribed by the director. The director shall maintain a record of all registration certificates issued and their contents.
The registration shall expire and the registration certificate shall become void on the last day of the 11th calendar month following the calendar month in which the certificate was issued, except that the director may suspend or revoke a registration for any violation of this act or of any of the rules promulgated hereunder.
The director shall issue registration certificates for the following registration period, on and after the first day of the calendar month immediately preceding the commencement of the registration period, the registration certificates to be effective immediately.
Application forms for all renewals of registrations for motorized bicycles shall be mailed by the director from the division to the last address of the owner of a motorized bicycle as it appears on the records of the division.
N.J.S. § 39:4-14.3i