New Jersey Statutes Annotated §52:27D-133.3 to 133.5:
Single- and multi-family dwellings built or substantially rehabilitated after the effective date must have CO alarms installed. (Effective date: January 1, 2010)
New Jersey Statutes Annotated §55:13A-7.17:
Every unit of dwelling space in a hotel or multiple dwelling must be equipped with one or more CO alarms unless it is determined that no potential CO hazard exists for that unit.
New Jersey Statuts Annotated 55:13B-6.1:
Every unit of dwelling space in a rooming or boarding house shall be equipped with one or more carbon monoxide sensor devices