The Miami-Dade NOA, explained

What a Notice of Acceptance is

The NOA is issued by Miami-Dade’s Product Control Section. It certifies that a specific product, from a specific manufacturer, in a specific configuration, was tested and approved for use in the High Velocity Hurricane Zone.

It is not a brochure and it is not a marketing claim. It is a public document with a number, and you can look it up yourself. The county runs a product control search, and the state runs its own approval search alongside it.

What is actually inside one

The header carries the NOA number, the approval date, the expiration date and the revision number. Then the applicant and the manufacturing addresses that are authorised to make it. Then the scope: the exact model, series and type.

The parts that decide your job are further in. The design pressure rating, positive and negative, normally tabulated by size — which is why the same window has a different rating at 3 by 5 feet than at 5 by 7. The missile impact rating. The limitations: maximum sizes, permitted glass types, interlayers and configurations. And the installation drawings, signed and sealed by an engineer. That drawing is the document the inspector compares against what is actually screwed into your wall.

They expire, and the date that matters is installation day

NOAs are valid for five years, with quality assurance running through the period. Renewal is considered on application, provided nothing in the applicable code has changed in a way that affects the product’s performance, and an approval terminates at expiry or if the materials, use or manufacture change.

One practical wrinkle: NOAs do not expire on individual anniversaries. Real documents show grouped expiration dates, with many products sharing one. The rule that keeps you safe is simple — the NOA has to be current on the day the product is installed, not on the day it was quoted.

The label on your glass

Every installed unit has to carry a permanent label showing the manufacturer’s name, the manufacturing address, the model, the positive and negative design pressures, an indication that it is impact rated, a reference to the installation drawing, the NOA number, the applicable test standards, and the words Miami-Dade County Product Control Approved.

At the final inspection those labels have to be present and legible. It is worth resisting the urge to peel them off before then, and it is worth photographing them once the job is done.