N.J. Stat. Ann. § 43:15B-8

Any employee who made contributions to a similar plan while employed in a state other than New Jersey or by an employer in New Jersey different from the current employer may transfer his credit from the previous plan pursuant to provisions contained in the plan, provided the previous similar plan allows such transfers. Such purchase of credit in a plan authorized by this act shall enable the employee to gain the same benefits of the plan as if he had always been employed by his current employer.