N.J. Stat. § 45:1-7
Notwithstanding any of the provisions of Title 45 of the Revised Statutes or of any other law to the contrary, all professional or occupational licenses or certificates of registration, except such licenses or certificates issued to real estate brokers or salesmen pursuant to chapter 15 of Title 45, which prior to the effective date of this act were issued for periods not exceeding one year and were annually renewable, shall, on and after the effective date of this act, be issued for periods of two years and be biennially renewable, except that licenses and business permits issued to electrical contractors, and licenses issued to Class A journeymen electricians, Class A electrical apprentices, and Class B wiremen pursuant to chapter 5A of Title 45 shall be issued for periods of three years and be triennially renewable; provided, however, the boards or commissions in charge of the issuance or renewal of such licenses or certificates may, in order to stagger the expiration dates thereof, provide that those first issued or renewed after the effective date of this act, shall expire and become void on a date fixed by the respective boards or commissions, not sooner than six months nor later than 29 months, after the date of issue.
The fees for the respective licenses and certificates of registration issued pursuant to this act for periods of less or greater than one year shall be in amounts proportionately less or greater than the fees established by law.
N.J.S. § 45:1-7