Knox County, TN Fire Regulations: Smoke Detectors (2026)

Knox County adopted the 2018 edition of the National Fire Protection Association's Life Safety Code by reference in Sec. 30-56, then amended it in Sec. 30-57. 6 and NFPA 72 standards. The amendment specifies where smoke or heat detectors go depending on the area protected. In a residential area used for sleeping, detectors are required within every bedroom or sleeping room, centrally located in the corridor or area giving access to each group of sleeping rooms, and on every level of the residential apartment. In the building's other, non-residential occupancies, detection is required throughout, spaced to NFPA 72.

1, and the completed system must pass an acceptance test approved by the fire inspector. The rule targets apartment buildings, mixed residential/commercial structures, and other multi-occupancy buildings with sleeping units, rather than standalone single-family houses, which fall instead under the smoke-alarm provisions of the separately adopted International Residential Code. The amendment traces to Ord. No. O-18-10-101, § 14, adopted November 19, 2018, which repealed and reenacted Article III of Chapter 30 to update it from the 2012 to the 2018 LSC edition.