Relating to small homes; and prescribing an effective date.

Adopts Small Home Specialty Code to regulate construction of homes not more than 400 square feet in size. Requires amendment of Low-Rise Residential Dwelling Code to provide that Small Home Specialty Code supersedes conflicting provisions of Low-Rise Residential Dwelling Code. Authorizes municipal building official to alter, modify or waive specialty code requirements for small home if strict adherence to Small Home Specialty Code is impractical or infeasible. Requires that building permits and zoning permits for small home designate small home as single family project. Requires that certificate of occupancy for small home allow occupancy only for residential use as single family dwelling. Specifies application of fire sprinkler head and fire sprinkler system design criteria to small homes. Authorizes municipal building official to allow increased detection and occupant notification in lieu of fire sprinkler head or fire sprinkler system. Requires that small home be built with listed heat detector unit alarm or ] listed photoelectric smoke alarm. Sunsets Small Home Specialty Code and small home fire sprinkler design , heat detector ] and smoke alarm provisions on January 2, 2026. Takes effect October 1, 2019.