N.J. Stat. 24:6J-4(d)
Liability: Administering Opioid Antagonist
An individual who has received educational information regarding opioid overdoses and who, in good faith, administers an opioid antagonist to someone thought to be suffering from an opioid-related overdose will not be held legally responsible for acting or for failing to act while administering the opioid antagonist. They can be held legally responsible if acting with extreme carelessness or intent to cause harm.
Immunity from liability for certain prescribers, practitioners, dispensers
(1) Any person who is the recipient of an opioid antidote, which has been prescribed or dispensed for administration purposes pursuant to subsection a. or b. of this section, and who has received overdose prevention information pursuant to section 5 of P.L.2013, c.46 (C.24:6J-5), may administer the opioid antidote to another person in an emergency, without fee, if the antidote recipient believes, in good faith, that the other person is experiencing an opioid overdose. (2) Any person who administers an opioid antidote pursuant to paragraph (1) of this subsection shall not, as a result of the person’s acts or omissions, be subject to any criminal or civil liability for administering the opioid antidote in accordance with P.L.2013, c.46 (C.24:6J-1 et seq.).