N.J. Stat. 24:6J-4(c)(2)
Liability: Emergency Medical Responder Administering Opioid Antagonist
An emergency medical responder who, in good faith, administers an opioid antagonist will not be held legally responsible for acting or for failing to act. They can be held legally responsible if acting with extreme carelessness or intent to cause harm.
Immunity from liability for certain prescribers, practitioners, dispensers
(c) . . . . (2) Any emergency medical responder or emergency medical response entity that administers an opioid antidote, in good faith, in accordance with paragraph (1) of this subsection, and pursuant to a standing order issued under subsection a. of this section, shall not, as a result of any acts or omissions, be subject to any criminal or civil liability, or any disciplinary action, for administering the opioid antidote in accordance with P.L.2013, c.46 (C.24:6J-1 et seq.)