New Jersey Statutes Title 12. Commerce and Navigation 12 § 7D-2

a. The operator of a vessel involved in a collision, accident, or other casualty, to the extent he can do so without serious danger to his own vessel, or persons aboard, shall render all practical and necessary assistance to persons affected by the collision, accident, or casualty to save them from danger caused by the collision, accident, or casualty.  He shall also give his name, address, and the identification of his vessel to any person injured and to the owner of any property damaged.  The duties imposed by this subsection are in addition to any duties otherwise imposed by law.

b. Any person who complies with subsection a. of this section or any other person who gratuitously and in good faith renders assistance at the scene of a vessel collision, accident, or other casualty without objection of any person assisted, shall not be liable in any civil action to respond in damages as a result of the rendering of assistance or for any act or omission in providing or arranging salvage, towage, medical treatment, or other assistance.