Florida Building Code 9th Edition: what changes for permits submitted after Dec 31, 2026

On December 31, 2026, Florida moves from the 8th Edition (2023) of the Florida Building Code to the 9th Edition (2026). The switch is statewide and covers every FBC volume. For architects, engineers, contractors and permit expediters, the practical question is simple: which edition will your plans be reviewed against? The answer depends almost entirely on the date your application is submitted.

This post explains what is changing, how the cutover works, what Miami-Dade has added on top of the state date, and what to check in a permit set before and after the deadline. As always, we do not reproduce code text. We paraphrase and point you to the official source so you can read the provisions yourself.

The short version

• Effective date: December 31, 2026.
• Old edition: FBC 8th Edition (2023), in effect since December 31, 2023.
• New edition: FBC 9th Edition (2026), built on the 2024 International Codes with Florida-specific amendments. The 9th Edition references the 2023 National Electrical Code.
• Trigger: applications and plans submitted on or after December 31, 2026 are reviewed under the 9th Edition. Applications submitted before that date generally stay under the 8th Edition, as long as they remain active.
• Official source: the Florida Building Commission's Analysis of Changes for the 9th Edition, at floridabuilding.org.

What the 9th Edition is

Florida writes its own code. Each edition takes the prior Florida edition as its base and updates it with selected changes from the newest International Codes, plus Florida amendments. The Commission's own Analysis of Changes says the 8th Edition is the base document for the 9th, and the 2024 IBC is the model used to update it. It also notes that not every 2024 IBC change was carried into Florida's code.

That detail matters. You cannot assume that because a provision changed in the 2024 IBC, it changed in Florida. And you cannot assume that a Florida-specific provision you relied on under the 8th Edition is untouched. The Analysis of Changes is organized side by side: the 8th Edition section and a summary, the matching 9th Edition section and a summary, and a short comment on the difference. It is the fastest way to see what moved.

Read it here: https://www.floridabuilding.org/fbc/thecode/2026_Code_Development/Analysis_Code_Changes/Analysis_of_changes_9th_Edition-2026-FBC-Building.pdf

The Commission publishes similar analyses for the other volumes. Check the one for each discipline in your set, not only Building.

How the cutover works in practice

The edition is tied to the submittal date, not to the design date, the issue date or the start of construction. A set drawn in October 2026 and submitted on January 4, 2027 is a 9th Edition submittal. A set submitted on December 29, 2026 is an 8th Edition submittal, even if the permit is issued in February.

A few practical consequences:

1. Design teams with projects in progress should decide now which side of the line each project will land on. If a set cannot realistically be complete and submitted before December 31, plan to update it to the 9th Edition rather than rushing an incomplete submittal.
2. Code summaries and cover sheets should name the edition explicitly. A reviewer who sees "FBC 2023" on a set submitted in January will flag it.
3. Product approvals and referenced standards may need a second look. A new edition can change referenced standard editions, so confirm that the approvals and standards you cite line up with the edition your project falls under.
4. Expired applications are the trap. If an application filed under the 8th Edition expires, a new filing will generally fall under the 9th Edition. Check your jurisdiction's extension rules before letting anything lapse.

Miami-Dade County: an earlier practical cutoff

Miami-Dade County follows the state date, and the High-Velocity Hurricane Zone (HVHZ) provisions remain part of the code it enforces. Its Permitting and Inspection Center has published a notice with two points every Miami-Dade applicant should know:

• Applications submitted through the online portal after 4 PM on December 30, 2026 are treated as 9th Edition submittals. In practice, the last day to submit under the 8th Edition online is December 30, before close of business.
• Applicants using "Cookie Cutter" or "Master Model" programs are told to start updating their models now to avoid delays.

The notice also describes a limited path for extensions on expired applications filed before the deadline, with a written request and a time limit. Read the notice for the exact conditions: https://www.miamidade.gov/resources/economy/building/documents/fbc-ninth-code-change.pdf

The county building home page is here: https://www.miamidade.gov/global/economy/building/home.page

Other Florida counties and cities may publish their own portal cutoffs or holiday closures around the deadline. If you are submitting near the end of December, check the building department's notices rather than assuming the portal accepts filings until midnight on December 30.

What to check in a permit set

Whether you are submitting before or after the deadline, these are the items that most often cause comments at a code changeover:

• Edition labels. Every sheet that cites a code should cite the edition the project actually falls under.
• Section references. Section numbers can move between editions. A citation that was correct under the 8th Edition can point to the wrong provision, or to nothing, under the 9th.
• Energy compliance. Make sure the compliance path and forms match the edition.
• Electrical. The 9th Edition references NEC 2023. Electrical drawings and notes should match.
• HVHZ items. In Miami-Dade and Broward, product approvals and wind design documentation are reviewed closely. Confirm approvals are current and accepted for HVHZ use.
• Referenced standards. Confirm the standard editions cited in specs match the code edition.

How PermitPrep.AI helps

PermitPrep.AI reviews a permit set against the code editions in force for the project's location and application date. Our data stores each jurisdiction's adoption history with dated switches, so a Florida project submitted on December 30, 2026 is checked against the 8th Edition, and one submitted on December 31 is checked against the 9th. Every edition we use is tied to an official source.

If you want to see what a review looks like, open the sample report. To check which editions apply to your own project date, use the free code lookup. When you are ready, start a free trial and run your set before you submit. Free trial: 2 reports, no credit card required.

Sources

• Florida Building Commission, Analysis of Changes, 9th Edition (2026) FBC, Building: https://www.floridabuilding.org/fbc/thecode/2026_Code_Development/Analysis_Code_Changes/Analysis_of_changes_9th_Edition-2026-FBC-Building.pdf
• Florida Building Code online: https://www.floridabuilding.org/c/default.aspx
• Miami-Dade County Permitting and Inspection Center, 9th Edition notice: https://www.miamidade.gov/resources/economy/building/documents/fbc-ninth-code-change.pdf
• Miami-Dade County Building: https://www.miamidade.gov/global/economy/building/home.page

This post is general information, not legal or code advice. Confirm requirements with the building department that has jurisdiction over your project.