Summary
Florida Product Approval confirms that a specific window or door configuration has been evaluated for compliance with applicable requirements of the Florida Building Code.
However, an FL Approval number does not automatically mean that every configuration is approved for Florida’s High-Velocity Hurricane Zone (HVHZ). Project teams must check the approval record, design pressures, impact status, approved sizes, components, and installation requirements before specifying or purchasing a product.
1. What Is Florida Product Approval (FL Approval)?
Florida Product Approval is a state-level approval process administered through the Florida Building Commission. It applies to product categories that affect the integrity of the building envelope, including windows, exterior doors, roofing products, shutters, and other building components.
Approval applies to a defined product or system configuration. Depending on the product record, the documentation may identify structural design pressures, impact status, approved dimensions, glazing options, anchoring requirements, substrates, and other limits of use.
How Does an FL Approval Number Work?
- Each approved product record is assigned an identification number beginning with FL, followed by a series of numbers. Individual products or models may also appear as sub-numbers within the main record.
- The FL number links to a public record in the Florida Building Code Online Product Approval database.
- The record may include evaluation reports, installation instructions, certification documents, approved configurations, design pressures, and limits of use.
- An FL number alone does not confirm that a product is suitable for a particular project. The exact model, size, glazing, design pressure, impact status, anchoring method, substrate, and installation conditions must match the approved documentation.

What Does Florida Product Approval Cover?
- Structural wind-load performance and the approved positive and negative design pressures.
- Water and air performance where these tests and classifications are included in the applicable approval documents.
- Impact resistance when the specific product record identifies the configuration as impact resistant.
- Approved product dimensions, glazing assemblies, frame reinforcements, hardware, anchors, substrates, and installation conditions.
What Does It Not Automatically Cover?
- Approval for use in the HVHZ unless the product record explicitly states “Approved for use in HVHZ: Yes.”
- Energy performance, which is evaluated separately through ratings such as NFRC U-Factor, SHGC, Visible Transmittance, and Air Leakage.
- Every possible combination of frame, glass, hardware, reinforcement, and installation method.
- Product suitability for every opening size, wind pressure, exposure category, building height, substrate, or project location.
Important: Product approval applies only within the limits and conditions shown in the official approval documents. Substituting unlisted glass, hardware, anchors, or installation methods may place the assembly outside the approved configuration.
2. FL Approval vs. Miami-Dade NOA: What’s the Difference?
Florida Product Approval and a Miami-Dade Notice of Acceptance (NOA) are related product-approval mechanisms, but they are not interchangeable terms.
Miami-Dade and Broward counties are located within Florida’s High-Velocity Hurricane Zone (HVHZ). Products used in the HVHZ must satisfy the applicable HVHZ requirements and must have documentation showing that they are approved for that use.
An FL Approval number does not automatically confirm HVHZ eligibility.
Check the product’s official Florida approval record. The record should explicitly state whether it is approved for use in the HVHZ.
Why Does the HVHZ Require Additional Evaluation?
The HVHZ provisions address severe wind and wind-borne debris conditions. Depending on the product type and application, the evaluation may include large-missile or small-missile impact testing, followed by repeated positive and negative pressure cycles.
These tests evaluate whether the product can resist impact and cyclic pressure without creating an opening that exceeds the applicable limits. The precise test standards and acceptance criteria depend on the product, building code edition, approval method, and intended use.
A Miami-Dade NOA is a widely recognized route for documenting compliance with HVHZ requirements. However, a statewide FL Approval can also identify a product as approved for HVHZ use when its official record and supporting documentation explicitly state this.
Comparison Table
| Approval | Issuing Authority | Coverage | What to Verify |
|---|---|---|---|
| Florida Product Approval | Florida Building Commission | Statewide within the product’s approved limits of use. The record identifies whether the product is approved inside or outside the HVHZ. | HVHZ status, impact status, design pressures, approved configurations, installation instructions, and approval validity. |
| Miami-Dade NOA | Miami-Dade County Product Control Section | Miami-Dade County and other locations where the approval is accepted by the applicable Authority Having Jurisdiction (AHJ). | Expiration date, approved sizes, design pressures, impact status, components, installation details, and limitations. |
Final product acceptance depends on the applicable building code, approval documents, project conditions, and the Authority Having Jurisdiction.
3. How to Verify a Window System’s FL Approval Number
Before specifying or purchasing a window or door system, confirm that the approval is current and that the approved configuration matches the project requirements.
- Search the official product-approval database. Enter the FL number, manufacturer name, product category, model, or other available search criteria.
- Check the approval status and code version. Confirm that the record is valid and appropriate for the building code edition being applied to the project.
- Verify the HVHZ status. If the project is in Miami-Dade or Broward County, confirm that the record explicitly states “Approved for use in HVHZ: Yes.”
- Check whether the configuration is impact resistant. Impact resistance is listed separately and should not be assumed based only on the product name or FL number.
- Match the approved design pressures. Compare the listed positive and negative pressures with the pressures required for the specific opening.
- Match the product configuration. Confirm the approved frame, dimensions, glass type, reinforcement, hardware, mullions, and other system components.
- Review the installation instructions. Verify the anchor type, spacing, edge distances, substrate, embedment, perimeter clearances, and other installation conditions.
- Confirm acceptance with the project team. The architect, engineer, contractor, permit authority, or other Authority Having Jurisdiction should confirm final project applicability.

Verification tip: Do not stop after finding the main FL number. Open the applicable product sub-number and review its limits of use, evaluation report, and installation instructions.
4. Why Florida Product Approval Matters for Architects and Distributors
For Architects: Product Selection and Permitting
Florida Product Approval documentation provides the evaluation reports, performance values, limits of use, and installation details needed to assess whether a window or door system is appropriate for a project.
Matching the correct approval to the project’s location, design pressures, opening sizes, exposure conditions, glazing requirements, and substrates can help reduce questions and revisions during plan review.
Key consideration: The FL number should be referenced together with the applicable product sub-number, approved configuration, and installation documentation.
For Distributors: Confirming the Supplier’s Compliance Range
Distributors should confirm which models, configurations, sizes, glass options, design pressures, and installation conditions are covered by each supplier’s approval documents.
They should also distinguish between products approved outside the HVHZ, products with explicit HVHZ approval, and products supported by a Miami-Dade NOA.
Key consideration: Certification and approval normally apply to specific product systems, not automatically to every product offered by the manufacturer.
5. How YY WINDOWS Approaches Certification Compliance
YY WINDOWS supports selected window and door systems with applicable energy-performance ratings, product approvals, test reports, and certification documentation.
Depending on the specific product, documentation may include NFRC ratings, Miami-Dade NOA records, CSA certification or testing information, and Intertek test or certification reports.
Certification should always be verified for the exact product model and configuration being specified.
Approval for one window or door system does not automatically apply to every size, glass package, hardware option, frame configuration, or installation method.
Each product is treated as a complete system consisting of the aluminum profiles, reinforcement, hardware, glass, seals, anchors, and installation method. This system-based approach helps ensure that the supplied configuration remains consistent with the tested and approved documentation.

Frequently Asked Questions
Does FL Approval mean a window is hurricane-rated for all of Florida?
No. Florida Product Approval applies only to the configurations and conditions shown in the approval record. Check the impact status, HVHZ status, design pressures, approved sizes, and limits of use before selecting a product.
Can a product with Florida Product Approval be used in Miami-Dade or Broward County?
It may be used when the applicable approval record explicitly identifies the product as approved for HVHZ use and the proposed configuration meets all documented limits and project requirements.
A Miami-Dade NOA is a common approval route for these areas, but the presence of an FL number or NOA should still be verified against the specific product, configuration, and current documentation.
Where can I find a window’s FL Approval number?
Request the FL number from the manufacturer or supplier and check the product label, technical data, quotation, shop drawings, or project submittal package.
You can then verify the number, manufacturer, product model, approval status, and supporting documents in the official Florida Building Code Online Product Approval database.
Does impact-resistant mean the product is approved for the HVHZ?
Not necessarily. A product record can identify a configuration as impact resistant while also stating that it is not approved for use in the HVHZ. Check both fields separately.
Is Florida Product Approval the same as an energy-efficiency certification?
No. Florida Product Approval addresses code-related product performance and approved use conditions. Energy performance is evaluated separately through ratings such as NFRC U-Factor, SHGC, Visible Transmittance, and Air Leakage.
Does the FL number alone prove project compliance?
No. The FL number identifies the approval record, but project compliance depends on whether the exact product configuration, design pressures, dimensions, glazing, anchoring, substrate, and installation conditions match the approval documents and project requirements.
Official Verification Resources
- Florida Product Approval Search — Search by FL number, manufacturer, product model, HVHZ status, impact status, and other criteria.
- Miami-Dade Product Control Search — Search for Miami-Dade Notices of Acceptance and related product records.
Further Reading
- About YY WINDOWS — Learn about our factory, team, quality controls, and company mission.
- Window and Door Systems — Explore our energy-efficient and hurricane-resistant aluminum window and door systems.
- Project Case Studies — View completed window and door projects and application examples.


