N.J. Stat. Ann. § 27:25-5a

1. The provisions of any law, rule or regulation to the contrary notwithstanding, the New Jersey Transit Corporation shall not, at any time, prohibit any person transporting a collapsible bicycle from passing or repassing upon any of the corporation's railroads operating rail passenger service. For the purposes of this act, "collapsible bicycle" means any two-wheeled vehicle having a rear drive wheel which is solely human-powered, and has a frame and other constituent parts that can be readily manipulated, folded or placed together into a more compact form.