Tennessee Building code adoption
Home rule — cities adopt independently · 5 cities tracked · 1 with amendments.
Overview
Governance
Home Rule
Cities tracked
5
There is no binding state edition. Each city picks its own IBC/IRC/etc. cycle, which means a single metro can sit on 4+ different editions at once.
Adopted building codes (state level)
Home rule — cities adopt independently. Click a code to open its full adoption atlas across all 50 states.
City-level adoption
| City | IBC edition | Amendments | Note |
|---|---|---|---|
| Gallatin | 2021 | — | — |
| Hendersonville | 2021 | — | — |
| Knoxville | 2024 | — | — |
| Memphis | 2021 | yes | — |
| Nashville | 2024 | — | — |
Quirks & watch-items
Quirks & watch-items
- Tennessee is a home rule state — state minimum applies to non-exempt jurisdictions; large cities (Nashville, Memphis, Knoxville, Chattanooga) adopt newer codes locally and are exempt-jurisdiction
- State minimum was significantly modernized April 17, 2025 (jumped from 2012 IBC to 2021 IBC; from 2017 NEC kept; etc.) per SFMO Rule 0780-02-02 update
- Nashville jumped from 2018 to 2024 IBC in July 2025
- Knoxville adopted 2024 IBC but kept 2018 IECC — split energy code
- Hendersonville upgraded from 2018 to 2021 effective July 1, 2025
- Gallatin references IBC on city website but edition year is not visible in search results — likely 2018 or 2021
- NFPA 101 Life Safety Code was discontinued for state buildings/schools/SFMO-inspected buildings effective April 17, 2025