If you are comparing impact windows or doors in Florida, you will eventually see a contractor, manufacturer, permit checklist, or product label reference an FL number or Florida Product Approval. That number is important, but it is not a blanket certificate that makes every product from a brand acceptable for every Florida home.
Florida Product Approval is a statewide product evaluation and approval system that works with the Florida Building Code. For windows and exterior doors, the approval record can help identify the exact product series, code version, impact status, design-pressure limits, whether the product is approved for use in the High-Velocity Hurricane Zone, and the installation conditions that apply.
This guide explains what homeowners should actually verify before accepting the statement “this window is Florida approved.” It is based on the current 2026 Florida statute and Florida Building Commission product-approval system available as of August 27, 2026.
Important: Product approval is only one part of code compliance. The exact product, opening, design pressure, size, substrate, anchoring, glazing, permit scope, and local requirements still have to match the approved conditions.
Quick answer: what is Florida Product Approval?
Section 553.842, Florida Statutes, directs the Florida Building Commission to maintain a statewide product evaluation and approval system that operates in coordination with the Florida Building Code.
The law identifies categories that use the statewide approval process, including:
- Exterior doors
- Windows
- Shutters
- Impact-protective systems
- Roofing
- Skylights
- Panel walls
- Structural components established by rule
For homeowners shopping for impact windows or doors, the practical value is that an approval record provides a traceable technical reference for the product rather than relying only on marketing language.
The Florida Building Commission maintains the official Product or Application Search, where users can search by FL number, manufacturer, product category, code version, impact status, HVHZ status, design pressure, and other criteria.
What does an FL number mean?
An FL number is the State Product Approval Number used in the Florida Building Commission product-approval system.
The official search page allows a user to enter an FL number and select the applicable code version. If the FL number is not known, the database can also be searched by manufacturer and other criteria.
An FL number is useful because it lets you move from a broad sales claim to the actual approval record. That record may include:
- Manufacturer
- Application status
- Product category and subcategory
- Compliance method
- Product model or series
- Referenced testing standards
- Quality-assurance information
- Whether the product is impact resistant
- Whether it is approved for use in the HVHZ
- Whether it is approved for use outside the HVHZ
- Positive and negative design-pressure information
- Limits of use
- Installation instructions or approved drawings
Do not stop at the FL number alone. The important question is whether the specific product listed in the approval matches what is being proposed for your opening.
Does “Florida approved” automatically mean impact resistant?
No.
The Florida Building Commission search separates product approval from impact resistance. The official database includes an “Impact Resistant” field because a product can have an approval record without necessarily being impact rated for the use you are considering.
That distinction matters when a proposal uses broad terms such as:
- Hurricane window
- Storm window
- Florida approved
- Wind rated
- Code approved
Those phrases should not replace the exact approval record.
For an impact-window project, verify that the proposed product and configuration are identified as impact resistant where impact resistance is required for the project.
If you are trying to confirm products that are already installed, our guide on how to tell if windows are impact resistant explains how labels, approval numbers, permit records, and manufacturer information can be used together.
Can one Florida Product Approval cover every window from a manufacturer?
No.
Approval is tied to the product or system described in the approval record. A manufacturer can have multiple window series, door systems, glass options, revisions, and configurations with different approval conditions.
Two windows from the same brand can therefore differ in:
- Impact classification
- Maximum approved size
- Design pressure
- Glass makeup
- Frame configuration
- Mullion requirements
- Hardware
- Approved substrate
- Anchor type or spacing
- HVHZ eligibility
- Installation details
That is why a proposal should identify the exact manufacturer and product series, not only the brand name.
Our impact window installation guide explains how product approvals, measurements, design pressures, permits, anchoring, inspections, and closeout fit into the larger installation process.
What are “limits of use” and why do they matter?
The limits of use are one of the most important parts of an approval record.
A product can be approved and still be unsuitable for a particular opening if the project falls outside the approved conditions. Depending on the product, the approval documents can address items such as:
- Maximum unit dimensions
- Maximum or minimum glass size
- Positive and negative design pressures
- Frame or sash configuration
- Impact classification
- Mullion configuration
- Approved anchors and fastener spacing
- Edge distance and embedment
- Concrete, masonry, wood, or other substrate conditions
- Installation method
- Water or structural performance limitations
- HVHZ or non-HVHZ use
This is why “the FL number is valid” and “this exact opening is compliant” are not the same statement.
What is design pressure?
Windows and doors are subjected to wind pressure acting both toward and away from the building. Product approval records can therefore list positive and negative design-pressure capacities.
The required pressure for a particular opening is project-specific. It can depend on factors such as building height, location on the wall, building geometry, wind design criteria, exposure, and the applicable code provisions.
A product approval should be matched to the design pressure required for the opening. Homeowners should not assume that a higher-looking marketing number automatically solves every engineering or permit requirement.
Miami-Dade County’s current permitting guidance for window and glass-door work specifically asks applicants to identify the required positive and negative pressures and the product approval numbers for the proposed windows or doors.
What does “approved for use in HVHZ” mean?
The High-Velocity Hurricane Zone (HVHZ) includes Miami-Dade and Broward counties under the Florida Building Code framework.
The Florida Product Approval database includes separate fields for:
- Approved for use in HVHZ
- Approved for use outside HVHZ
That means homeowners should not rely on a simplified internet rule saying that every statewide FL approval is automatically excluded from the HVHZ.
Instead, verify the actual approval record. Some statewide approval records can explicitly indicate approval for HVHZ use, while others state that they are not approved for HVHZ use.
Miami-Dade County’s current permitting guidance for replacement windows and glass doors accepts applicable Florida Building Commission product approvals and also uses Miami-Dade Notices of Acceptance in its product-control process.
The correct question is therefore not “Is an FL number or NOA always better?” The correct question is:
Which current approval applies to this exact product and this exact project location?
Florida Product Approval vs. Miami-Dade NOA
A Florida Product Approval and a Miami-Dade Notice of Acceptance (NOA) are related to product compliance, but they are not the same approval system.
Florida Product Approval
The statewide system is administered through the Florida Building Commission and is established under section 553.842, Florida Statutes.
The official database lets users verify approval status, code version, manufacturer, product details, impact status, HVHZ use, design pressure, and supporting documentation.
Miami-Dade Notice of Acceptance
Miami-Dade County’s Product Control Section reviews and issues product approvals for building-envelope products and maintains its own Product Approval Search. The county describes this process as covering products such as windows, exterior glazing, roofing, doors, skylights, siding, and shutters.
Miami-Dade permit guidance for windows and glass doors asks for current product-approval documentation and allows Florida Building Commission approvals where applicable.
For a South Florida project, the contractor or design professional should identify which approval documentation is being submitted and why it is acceptable for that product, opening, and jurisdiction.
Does statewide approval mean a local building department cannot ask for anything else?
Florida law says that statewide approval prevents local jurisdictions from requiring additional testing, evaluation, or other evidence as a condition of using the product when the product is being used consistently with the conditions of its approval.
That does not mean the approval eliminates normal permit review.
A building department can still need project information such as:
- Opening size
- Product approval number
- Design pressure
- Elevation or opening schedule
- Mullion details
- Installation method
- Permit application information
- Engineering where required
- Other project-specific documentation
The approval addresses the product. The permit review addresses how the product is being used in the actual building project.
What Florida Building Code version should you search?
As of August 27, 2026, the Florida Building Commission states that the Florida Building Code, 8th Edition (2023) became effective December 31, 2023.
The official Product Approval Search currently identifies the 2023 Florida Building Code as the applicable code version for current searches.
That date matters because older approval documents can be tied to earlier code editions. When reviewing a proposal or permit package, confirm that the contractor is using the applicable current approval record rather than sending an archived document without explaining its status.
Why revisions matter
Approval applications can be revised over time. A revised application can reflect updated documentation, product changes, code-version changes, or other approved modifications.
The Florida statute explains that state and local approvals remain valid until the code requirements on which the approval is based change, the product changes in a way that affects required performance, or the approval is revoked, subject to the rules governing the approval system.
For homeowners, the practical rule is simple: verify the current approval record at the time of the project instead of relying on a screenshot or PDF saved years earlier.
How to verify a Florida Product Approval before signing a contract
A homeowner can perform a useful first-pass verification in a few minutes.
Step 1: ask for the exact product information
Request:
- Manufacturer
- Product series or model
- Window or door type
- FL approval number or applicable NOA
- Proposed glass option
- Frame configuration
Step 2: search the official Florida database
Use the Florida Building Commission Product or Application Search.
Search by the FL number when you have it. If you do not, start with the manufacturer and current code version.
Step 3: confirm the application status
Make sure you are reviewing the correct current record and that the product status supports the proposed use.
Step 4: confirm the exact product or model
Do not assume the approval applies to every product made by the manufacturer.
Step 5: review impact and HVHZ fields
Check whether the exact product is listed as impact resistant and whether its geographic approval matches the project location.
Step 6: review design-pressure and size limits
The proposed unit needs to fit within the applicable approval limitations and satisfy the project’s required pressures.
Step 7: review installation instructions
Fasteners, anchoring, substrate, mullions, and other installation details can be part of the approved system.
Step 8: compare the approval to the permit documents
The product number, size, configuration, and pressure information used in the permit package should correspond to what is actually being installed.
If you are comparing installers, our guide on choosing an impact window company includes additional questions about licensing, product documentation, scope clarity, warranties, and permit responsibility.
Red flags when reviewing a window or door proposal
Product documentation should make a proposal more specific, not more confusing.
Watch for situations such as:
- The proposal lists only a manufacturer but no series or model
- The contractor says “Florida approved” but will not provide an FL number or NOA
- The approval belongs to a different product type than the one quoted
- The product is approved outside HVHZ but the project is in the HVHZ
- The record does not show impact resistance when impact protection is required
- The proposed size exceeds the approval limits
- The design-pressure information does not match the project schedule
- The installation method does not match the approval drawings
- An old or archived approval document is presented without current verification
None of these automatically proves misconduct, but each is a reason to stop and verify the technical documentation before the product is ordered.
Frequently asked questions
Is every product with an FL number impact resistant?
No. Florida Product Approval and impact resistance are separate data points. Verify the “Impact Resistant” field and the exact product details in the official record.
Does an FL number mean the window can be used anywhere in Florida?
Not automatically. The product must be used consistently with its approval. Check the HVHZ fields, design-pressure limits, size, configuration, substrate, anchoring, and other limits of use.
Is a Miami-Dade NOA the same as Florida Product Approval?
No. They are separate approval systems. Miami-Dade maintains its own Product Control process, while Florida Product Approval is the statewide system established under Florida law.
Can a Florida Product Approval be used in Miami-Dade or Broward?
Some statewide approval records explicitly indicate approval for HVHZ use. Miami-Dade’s current window and glass-door permitting guidance also states that applicable Florida Building Commission approvals are acceptable. The exact product and local permit requirements should be verified for the project.
Does a valid approval guarantee my permit will be approved?
No. Product approval is one part of the permit package. The product still has to match the opening, required pressures, size, installation details, and other project-specific code requirements.
Should I verify approval before or after ordering windows?
Before ordering. Verifying the product series, approval, dimensions, impact status, pressure capacity, and installation conditions early reduces the risk of discovering a compliance mismatch after products have been manufactured or delivered.
Official sources
For current product information, use primary sources rather than contractor summaries or screenshots:
- Florida Statutes, Section 553.842 — Product Evaluation and Approval
- Florida Building Commission — Product or Application Search
- Florida Building Commission — Current Florida Building Code Information
- Miami-Dade County — Product Approval
- Miami-Dade County — Windows, Shutters, Doors and Security Bars
The bottom line
Florida Product Approval is not a marketing badge. It is a technical approval record that should connect the product being sold to the Florida Building Code requirements that apply to its use.
For impact windows and doors, homeowners should verify the exact product series, current approval status, impact classification, HVHZ applicability, design-pressure limits, size limits, and installation instructions. A valid FL number is valuable, but only when the product being installed actually matches the approved conditions and the project’s permit requirements.
AA Glass & Windows can help you review impact-window and impact-door options, product documentation, opening requirements, and installation planning for your Florida property. Request a free estimate to discuss the products and approval documentation for your project.
