Florida mechanical, plumbing, fuel gas & energy codes
Florida has one statewide code, the Florida Building Code (FBC), set by the Florida Building Commission. The 8th Edition (2023) is in force now. The 9th Edition (2026), based on the 2024 I-Codes, takes effect December 31, 2026.
Adopted codes
- Adopted as
- 8th Edition (2023) Florida Building Code – Mechanical
- Effective
- 2023-12-31
- Source
- Florida Building Commission – 9th Ed. Analysis of Changes, Mechanical
- Last checked
- 2026-10-27 verified
- Notes
- The 9th Edition (2026) FBC-Mechanical, based on the 2024 IMC, takes effect 2026-12-31. The 2021 IMC basis of the 8th Edition was taken from ICC's April 2026 adoption chart.
- Adopted as
- 8th Edition (2023) Florida Building Code – Plumbing
- Effective
- 2023-12-31
- Source
- Florida Building Commission – 9th Ed. Analysis of Changes, Plumbing
- Last checked
- 2026-10-27 verified
- Notes
- The 9th Edition (2026) FBC-Plumbing, based on the 2024 IPC, takes effect 2026-12-31.
- Adopted as
- 8th Edition (2023) Florida Building Code – Fuel Gas
- Effective
- 2023-12-31
- Source
- Florida Building Commission – 8th Ed. Analysis of Changes, Fuel Gas
- Last checked
- 2026-10-27 verified
- Notes
- The 9th Edition (2026) Florida Fuel Gas Code takes effect 2026-12-31.
- Adopted as
- 8th Edition (2023) FBC – Energy Conservation
- Effective
- 2023-12-31
- Source
- U.S. DOE Building Energy Codes Program – Florida
- Last checked
- 2026-10-27 verified
A2L refrigerants in Florida
The 2024 Supplement to the 8th Edition FBC-Mechanical (approved Dec 10, 2024) adds an exception to Section 1101.6: refrigeration systems using A2L refrigerant must be designed and installed to ASHRAE 15. It also updates the reference to ASHRAE 15-2022. Rule 61G20-1.001 was amended to incorporate the Dec 10, 2024 update, effective Feb 23, 2025 (Florida Register Vol. 51, No. 28).
Source: https://www.floridabuilding.org/fbc/thecode/2023_Code_Development/2024_Supplement_to_the_8th_Edition_2023FBC-Mechanical-Supplement_5.pdf · Last checked 2026-10-29 verified
Local amendments & things to watch
- Big date: the 9th Edition (2026) FBC takes effect Dec 31, 2026. In Miami-Dade, applications submitted after 4 PM on Dec 30, 2026 must comply with the 2026 edition. verified source
- Miami-Dade and Broward follow the FBC's High-Velocity Hurricane Zone (HVHZ) provisions. HVAC-specific HVHZ requirements have not been verified yet. unverified
- The 8th Edition rule (61G20-1.001) incorporating the Dec 2024 supplements took effect Feb 23, 2025, and a further update took effect July 6, 2025. verified source