Regulates smoking in multiple dwellings; requires Commissioner of Community Affairs to promulgate construction standards for new multiple dwellings permitting smoking.

New Jersey's S 2401 regulates smoking in apartment buildings and multi-unit housing. It requires existing building owners to group nonsmoking units together by 2026 and disclose smoking policies in all new leases. For new constructions, the bill mandates specific building standards - like air pressure differentials and ventilation systems - to prevent secondhand smoke from reaching nonsmoking areas. These rules aim to protect nonsmoking residents' health while allowing smoking in designated, properly separated units or rooms.