New Jersey Statutes Title 2A. Administration of Civil and Criminal Justice 2A § 18-61.2

a. For an action alleging disorderly conduct under subsection b. of section 2, or injury to the premises under subsection c. of section 2, or any grounds under subsection m., n., o. , p., q., or r. of section 2, three days' notice prior to the institution of the action for possession;

b. For an action alleging continued violation of rules and regulations under subsection d. of section 2, or substantial breach of covenant under subsection e. of section 2, or habitual failure to pay rent, one month's notice prior to the institution of the action for possession;

c. For an action alleging any grounds under subsection g. of section 2, three months' notice prior to the institution of the action;

d. For an action alleging permanent retirement under subsection h. of section 2, 18 months' notice prior to the institution of the action and, provided that, where there is a lease in effect, no action may be instituted until the lease expires;

e. For an action alleging refusal of acceptance of reasonable lease changes under subsection i. of section 2, one month's notice prior to institution of action;

f. For an action alleging any grounds under subsection l. of section 2, two months' notice prior to the institution of the action and, provided that where there is a written lease in effect no action shall be instituted until the lease expires;

g. For an action alleging any grounds under subsection k. of section 2, three years' notice prior to the institution of action, and provided that where there is a written lease in effect, no action shall be instituted until the lease expires;

h. In public housing under the control of a public housing authority or redevelopment agency, for an action alleging substantial breach of contract under paragraph (2) of subsection e. of section 2, the period of notice required prior to the institution of an action for possession shall be in accordance with federal regulations pertaining to public housing leases.

The notice in each of the foregoing instances shall specify in detail the cause of the termination of the tenancy and shall be served either personally upon the tenant or lessee or such person in possession by giving him a copy thereof, or by leaving a copy thereof at his usual place of abode with some member of his family above the age of 14 years, or by certified mail;  if the certified letter is not claimed, notice shall be sent by regular mail.