Permits single exit stairwells in certain new residential buildings under State Uniform Construction Code.

This bill allows New Jersey municipalities to permit a single exit stairwell in new multi-unit residential buildings (Group R-2, defined as structures with more than two dwelling units) up to six stories tall, overriding standard construction code requirements. It directly affects local governments, developers, and building owners by providing flexibility for new residential construction. The bill specifies that the first floor may include non-residential, nonhazardous uses (like retail) with separate entrances, and requires the Commissioner of Community Affairs to create a model ordinance for municipalities to adopt. These changes apply only to new development applications submitted after the bill takes effect.