What changes when the 2026 Florida Building Code takes effect on 31 December?
The short answer
- The 9th Edition (2026) Florida Building Code takes effect on 31 December 2026. It updates the 2023 edition with changes from the 2024 International Codes and the 2023 National Electrical Code.
- Which edition applies depends on when the permit application goes in. In Miami-Dade, applications submitted on or after 31 December, or through the online portal after 4 PM on 30 December, must meet the new code.
- For existing stores, restaurants and offices, the changes most likely to come up are new rules for A2L refrigerants, condensate piping, rooftop ladders, reroofing and electrical repairs.
- The Commission’s October 2026 schedule still listed its final adoption steps as pending, so confirm the date and cut-off with each county before planning work around it.
Florida updates its building code every three years, and the next edition takes effect on 31 December 2026. If you run locations in Florida, the date matters for any job that needs a permit around the turn of the year, such as a rooftop unit replacement, a new walk-in cooler, a reroof or an electrical upgrade. This guide covers what changes, which jobs it applies to, and what to check before work is scheduled.
What is changing on 31 December 2026?
The Florida Building Commission built the 9th Edition on the 8th Edition (2023) code and Florida’s own supplements, then added the changes it approved from the newest model codes. Florida did not adopt every change in those model codes, and it keeps its Florida-specific amendments.
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| Florida code volume | Model code the 2026 update draws on |
|---|---|
| Building | 2024 International Building Code |
| Mechanical | 2024 International Mechanical Code |
| Plumbing | 2024 International Plumbing Code |
| Fuel Gas | 2024 International Fuel Gas Code |
| Existing Building | 2024 International Existing Building Code |
| Electrical | 2023 National Electrical Code (NFPA 70) |
The Commission reviewed the 2024 International Energy Conservation Code separately. Under section 553.73(7)(e) of Florida law, a new edition takes effect no sooner than six months after it is published, and the Commission’s schedule sets the date at 31 December 2026.
ReferenceFlorida Building Commission, 9th Edition (2026) workplan, October 2026
Which jobs fall under the new code?
The edition is set by when the permit application is submitted, not by when the work happens. Miami-Dade County’s notice spells out its cut-off:
- Permit applications and plans submitted on or after 31 December 2026 must comply with the 2026 edition.
- Applications submitted through the online portal after 4 PM on 30 December 2026 must also comply with the 2026 edition.
- Applications filed before then that expire can be extended if you ask in writing within 180 days of expiry and show the application was not abandoned and was being pursued in good faith. Otherwise, you start again with a new application designed to the 2026 code.
Other counties and cities publish their own notices, and the exact cut-off time can differ. If you have a replacement or reroof planned for December or January, check the notice for that address and decide which side of the date the application should go in on.
ReferenceMiami-Dade County, Florida Building Code 9th Edition code change notice
What changes for HVAC and refrigeration?
Most of the mechanical changes come from the 2024 International Mechanical Code. These are the ones most likely to affect stores, restaurants and offices.
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| Section | What changes |
|---|---|
| 1101.2.1 | Equipment using A2L, A2, A3 or B1 refrigerants must be listed to UL 484, UL/CSA 60335-2-40 or UL/CSA 60335-2-89. |
| 1104.3.1 | High-probability direct systems for comfort cooling must use Group A1 or A2L refrigerants. |
| 1106.5 | New rules for machinery rooms with A2L refrigerants: refrigerant detectors that alarm and start ventilation within set times, mechanical ventilation to ASHRAE 15, and no open flames or surfaces hotter than 1290°F. |
| 1107 to 1110 | Refrigerant piping rules are reorganized, with new pressure and vacuum tests. |
| 307.2.2 | Condensate drain pipes from cooling coils and evaporators in unconditioned space must be insulated to at least R-3. |
| 306.5 | Permanent roof ladders follow updated dimensions and need a top landing. |
| 507 | Kitchen hood rules are reorganized. Appliances with draft hoods or atmospheric burners are generally not allowed in a room with a Type I or Type II hood unless they sit in a sealed, self-closing enclosure. |
| 301.16 | Exterior equipment replaced after flood damage must be raised to the first-floor height or 4 feet above grade, whichever is higher. Nonresidential buildings may use dry floodproofing instead. |
If you are replacing a rooftop unit or a walk-in condenser around the cut-off, ask the contractor which refrigerant the new equipment uses and which edition the permit will be under. Our guide on repair or replace covers the decision before that.
What changes for reroofing and repairs?
Work on existing buildings falls under the Existing Building volume, which draws on the 2024 International Existing Building Code.
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| Section | What changes |
|---|---|
| 706.3 | The rules for recovering a roof instead of replacing it are clarified. Removing only the upper roof covering is allowed when the substrate is adequate. The old roof coating exception is removed. |
| 706.7.3.1 to 706.7.3.3 | New rules for which underlayments can go over an existing self-adhering underlayment, for shingle, metal, tile and low-slope roofs. |
| 407.1 | Electrical repairs must comply with NFPA 70. The old allowance to repair or replace existing wiring with like materials is removed. |
| 805.4.2 | In larger alterations, doors must swing in the direction of exit travel when they serve 50 or more occupants, down from more than 50. |
| 503.2 and 701.3 | Flood-damaged exterior equipment must be raised, as above, with an exception for work that is part of a substantial improvement. |
What about GFCI on outdoor HVAC equipment?
This one applies to apartment communities and other dwellings, not stores. The National Electrical Code requires GFCI protection on certain outdoor outlets at dwellings under section 210.8(F), with an exception for listed HVAC equipment that the code says expired on 1 September 2026.
The City of Cape Coral’s notice says that from 1 September 2026, outdoor HVAC equipment covered by 210.8(F) needs GFCI protection unless another provision exempts it. Installations under the Florida Building Code, Residential continue to be checked against its own Florida-specific exception. If you run multifamily properties, confirm with each building department how it is treating condenser circuits before new installs.
ReferenceCity of Cape Coral, advisory notice on NEC 210.8(F) GFCI protection for outdoor HVAC equipment
What should you check before scheduling work?
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| Situation | What to do |
|---|---|
| A replacement or reroof planned for December or January | Check the cut-off notice for that address and decide which edition the permit should be under before you submit. |
| Permit applications already in progress | Track when they expire. A lapsed application may have to be redesigned to the 2026 code. |
| New HVAC or refrigeration equipment | Ask which refrigerant it uses. If it is A2L, confirm the listing standard and, for machinery rooms, the detection and ventilation. |
| Locations in flood zones | Plan for raised exterior equipment if a unit is replaced after flood damage. |
| Every Florida location | Confirm the building department’s own notice and any local amendments. |
If your facility work runs through Pebble, filter open work orders by location and trade to find the Florida jobs that may need a permit around 31 December, and settle the permit timing on each one before it is dispatched.
What is still unclear?
The Commission’s October 2026 schedule listed the final rule hearing, final approval and filing with the Secretary of State as still to be scheduled. It also lists two rounds of follow-up amendments tied to 2026 laws HB 803 and HB 1175, with workshops held on 13 October 2026. The effective date in the schedule is 31 December 2026, but check for updates before relying on it.
This guide covers the changes most likely to affect existing commercial locations. It is not the full code and it is not legal advice. The full 9th Edition is published at floridabuilding.org, and the building department for each address has the final say on what it will inspect.
Frequently asked questions
When does the 2026 Florida Building Code take effect?
The 9th Edition (2026) Florida Building Code takes effect on 31 December 2026, according to the Florida Building Commission’s schedule.
Which permits fall under the 2026 Florida Building Code?
It depends on when the permit application is submitted. In Miami-Dade County, applications submitted on or after 31 December 2026, or through the online portal after 4 PM on 30 December 2026, must comply with the 2026 edition. Other jurisdictions publish their own notices.
What is the 2026 Florida Building Code based on?
It updates the 8th Edition (2023) code with changes from the 2024 International Building, Mechanical, Plumbing, Fuel Gas and Existing Building Codes and the 2023 National Electrical Code, plus Florida-specific amendments.
Does the 2026 Florida Building Code cover A2L refrigerants?
Yes. The 2026 Florida Mechanical Code adds rules for A2L refrigerants, including listing standards for equipment and new requirements for machinery rooms such as refrigerant detectors and mechanical ventilation.
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Bedrock Facility Solutions
Bedrock Facility Solutions manages facility programs for multi-location operators across the United States.
Published 3 November 2026. Last reviewed 3 November 2026.