This bill amends the State Fire Code by introducing new requirements for smoke alarms in certain dwelling units, specifically those classified as Group R-2 and R-3 occupancies. It defines key terms such as "dwelling unit," "sealed battery," and "smoke alarm," and establishes that effective August 1, 2027, any replacement smoke alarm must be equipped with a sealed battery and must meet national testing standards published on or after October 1, 2022. The bill clarifies that these requirements apply regardless of the reason for replacement, including when smoke alarms exceed ten years from their manufacture date.

Additionally, the bill stipulates that any violation of these new requirements will be considered a violation of the State Fire Code, subject to penalties and enforcement mechanisms outlined in existing law. This legislative change aims to enhance fire safety in residential settings by ensuring that smoke alarms are more reliable and compliant with updated safety standards.