The AAMA Verified Components List: What It Covers and Why Purchasing Asks For It
FGIA — the alliance formed when AAMA merged with IGMA — runs the Verified Components List, covering Hardware, Weatherstrip, Finishes, and Sealants, Tapes and Flashings. This page explains how the list works, why a buyer asks for it, and how to check it yourself. H-O is a converter and makes no claim to be on the list.
Built for: fenestration engineers and purchasing groups answering a “is it on the VCL?” question.
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1Send drawingUpload a DXF, STEP, or PDF, or describe the system and the joint. Shop drawings, a spec section, and a sample extrusion profile work too.
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2Material reviewEngineering identifies which published manufacturer data applies to the grade, supplies the TDS H-O converts against, and states plainly what H-O can and cannot certify.
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3Prototype24 hours when material is in-house; otherwise 5–10 business days after drawing review, subject to tooling. Made-to-order; MOQ varies by material and part.
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4ProductionStandard production runs ship about 2 weeks after drawing approval, including kiss-cut-on-liner and laminated configurations. Expedited service available. Ongoing parts run with material traceability and lot-code TDS records.
What is the AAMA Verified Components List, and why is purchasing asking? It is FGIA's list of window and door components whose manufacturers submitted samples that tested in compliance with the applicable specification at an AAMA Accredited Laboratory. It covers four categories — Hardware, Weatherstrip, Finish Applicators and Manufacturers, and Sealants, Tapes and Flashings — and listings re-verify on a cycle, currently up to 36 months from the original test date before resampling. Values are per the TDS on file.
FGIA Verified Components program · Verified Components List (VCL) search · Component Verification Program Manual (CVPM) · AAMA Accredited Laboratory network · AAMA Gold Certification Label · AAMA/WDMA/CSA 101/I.S.2/A440 · AAMA 800-series component specifications (including 810.1).
- Not certification of a finished window or door
- Not a code requirement on its own
- Not a substitute for the project specification
- Not transferable from one grade to another
- Not permanent — listings lapse without extension
- Not a converter attribute — it attaches to the manufacturer's product
- Not the same as “tested to AAMA 810.1” on a data sheet
- Not something H-O claims for any part
Fenestration engineers and purchasing groups who have been handed a “confirm VCL status” line on a supplier questionnaire, and component buyers trying to work out what a data-sheet claim does and does not establish. For the component families themselves, start at the fenestration industry overview.
What the Verified Components List actually covers
The VCL answers a narrow question well. Most of the confusion around it comes from reading it as an answer to a wider one.
A listing attaches to a component manufacturer's specific product, tested at a specific time. It is not a company-wide credential, not a certification of the finished window, and not something a converter, distributor or fabricator can inherit. [1]
What it covers
FGIA's component-verification program exists because a finished window is only as good as the parts inside it. A component manufacturer, dealer or distributor submits samples to an AAMA Accredited Laboratory for testing against the specification that applies to that component. The laboratory sends the test report to the Validator; on acceptance, and after the license agreement and fees, the product goes onto the Verified Components List.
Eligibility and the applicable specifications are set out in the Component Verification Program Manual (CVPM). Four categories are covered: Hardware, Weatherstrip, Finish Applicators and Manufacturers, and Sealants, Tapes and Flashings. [1]
The cycle
Listings are not permanent. The initial listing runs 12 months from the test report date. It can be extended twice by filing a listing-extension form affirming the product has not changed from the tested version, for up to 36 months total from the original test date; the administrator requests those forms at 12 and 24 months, and failing to submit one removes the product from the list.
About six months before a listing expires, the Validator arranges resampling — samples may be pulled from a manufacturing facility, a warehouse or a customer location — and the samples go back to an AAMA Accredited Laboratory. A successful retest makes the product eligible for another cycle. That is why a listing you checked two years ago is worth re-checking.
Why purchasing asks for it
Because it is a gate on their side, not a preference. Components referenced in AAMA/WDMA/CSA 101/I.S.2/A440 [4] must demonstrate compliance with their applicable AAMA standards through testing at an AAMA Accredited Laboratory, and a component that cannot demonstrate it may not be used in products approved to bear the AAMA Gold Certification Label. A manufacturer building Gold Label product therefore has to ask every component supplier the same question, which is how the question reaches suppliers whose parts may not even fall in a VCL category.
What it does not cover
It is not certification of a finished window, door or skylight — that is a separate process against 101/I.S.2/A440. It is not a code requirement on its own. It does not travel between grades: a listing covers the product tested, so a different thickness, compound or finish is a different question. And it is not the same claim as “tested to AAMA 810.1” on a data sheet — that is a manufacturer's test statement against a voluntary specification, which is useful but is not a program listing. [5]
How to search the list
Go to the FGIA Verified Components List search [2]. Three routes in: a VCL number if you have one; a manufacturer code, which appears on every FGIA Certification label and is the fastest route when you are holding a labeled part; or a manufacturer name from the directory. Two habits make the result trustworthy. Search the component manufacturer, not the converter, distributor or fabricator whose name is on the box. And confirm the specific product and grade, because a company appearing in the directory does not mean every item in its catalog is listed.
How the program works, in one table
The parameters a purchasing questionnaire is usually reaching for, and where each one comes from.
| Parameter | What the program sets | Source |
|---|---|---|
| Scope | ||
| Administering body | FGIA — the Fenestration and Glazing Industry Alliance (AAMA + IGMA) | FGIA |
| Categories covered | Hardware; Weatherstrip; Finish Applicators and Manufacturers; Sealants, Tapes and Flashings | CVPM |
| Who is eligible | Manufacturers, dealers and distributors of those component products | CVPM |
| Governing manual | Component Verification Program Manual (CVPM) | FGIA |
| Testing and listing | ||
| Where testing happens | An AAMA Accredited Laboratory | FGIA program |
| Report review | Laboratory forwards the test report to the Validator for review and approval | FGIA program |
| Initial listing term | 12 months from the test report date | FGIA program |
| Extensions | Twice, by listing-extension form, to 36 months total from the original test date | FGIA program |
| Extension prompts | Requested at 12 and 24 months; non-submission removes the listing | FGIA program |
| Resampling trigger | Roughly six months before the listing expires | FGIA program |
| Sample sources | Manufacturing facility, warehouse, or customer location | FGIA program |
| Why it matters downstream | ||
| Related product standard | AAMA/WDMA/CSA 101/I.S.2/A440 references the component standards | FGIA store |
| Consequence of non-compliance | Component may not be used in products approved to bear the AAMA Gold Certification Label | FGIA program |
| How to check | VCL search by VCL number, manufacturer code, or manufacturer name | FGIA VCL search |
| What it is not | Certification of a finished window, door or skylight | FGIA program |
Program details as published by FGIA and current as of July 2026. Programs change; confirm against the FGIA program page before relying on any line above.
Where H-O fits, stated plainly
The honest version, because the alternative causes problems in a submittal.
H-O Products is a converter. H-O buys foam, rubber, tape and film in roll, sheet and bun form and die-cuts, slits, laminates and kits it to a customer drawing in Winsted, Connecticut, under an ISO 9001:2015 certified quality management system. H-O does not formulate or manufacture those materials, does not test them to AAMA specifications, and does not hold their test reports.
Listings and test data attach to the material manufacturer's product, not to the conversion. This page does not claim that H-O, or any part H-O converts, appears on the Verified Components List; whether a specific material and grade corresponds to a listed component has to be confirmed with H-O and with FGIA.
What H-O can do is real and often enough. Engineering will identify which published manufacturer data applies to the grade you are asking about, supply the technical data sheet H-O converts against, provide lot-code traceability from the finished part back to that material, and say clearly where a claim would have to come from the material manufacturer or from FGIA instead of from H-O. Where a project genuinely requires a listed component, the right move is to name that requirement early so material selection can be driven by it.
What to send: the callout as written, the part geometry or drawing, the incumbent part number, data sheet or sample, and the documentation the project actually requires — data sheet, test report reference, certificate of conformance, or a listing check. What comes back: a material recommendation traced to published data, a plain statement of what H-O can and cannot certify, and a quote. Typical prototype lead time is 5–10 business days after drawing review, depending on material availability, tooling, and inspection requirements.
Do not let a data-sheet line become a listing claim. “Tested to AAMA 810.1-16 Type I” on a glazing tape data sheet, or material commonly evaluated against ASTM C864 for a setting block, are useful statements about a material. Neither is a Verified Components listing, and writing them into a submittal as if they were is the failure mode this page exists to prevent.
The Verified Components List: engineer-grade FAQ
The eight questions engineering and purchasing ask most once a VCL line appears on a questionnaire.
What is the AAMA Verified Components List?
It is a list, administered by FGIA — the Fenestration and Glazing Industry Alliance formed when AAMA merged with IGMA — of window and door component products whose manufacturers submitted samples for testing at an AAMA Accredited Laboratory and whose samples were found in compliance with the applicable specification. It is a component-level program, separate from certifying a finished window or door. The program rules live in the Component Verification Program Manual (CVPM). [1]
Which components does the VCL cover?
Four categories: Hardware, Weatherstrip, Finish Applicators and Manufacturers, and Sealants, Tapes and Flashings. Manufacturers, dealers and distributors of those products are eligible to participate, provided the product meets the requirements in the CVPM. Structural framing, glass and insulating glass units are handled by other FGIA programs, not by the VCL. [1]
How often do listings have to be renewed?
An initial listing runs 12 months from the test report date. It can be extended twice by filing a listing-extension form affirming the product has not changed — the administrator requests those at 12 and 24 months — for up to 36 months total from the original test date. About six months before expiry the Validator schedules resampling; samples may be pulled from a manufacturing facility, a warehouse or a customer location and sent to an AAMA Accredited Laboratory. Missing an extension removes the product from the list. [1]
Why does purchasing ask for VCL status?
Because it is a gate. Components referenced in AAMA/WDMA/CSA 101/I.S.2/A440 [4] have to demonstrate compliance with their applicable AAMA standards through testing at an AAMA Accredited Laboratory; a component that cannot demonstrate it may not be used in products approved to bear the AAMA Gold Certification Label. So a buyer building Gold Label product asks every component supplier the same question, whether or not it applies to your particular part.
How do I search the Verified Components List?
Go to the FGIA Verified Components List search [2]. You can look up a VCL number, search by manufacturer code — the code that appears on every FGIA Certification label — or browse by manufacturer name. Search on the component manufacturer, not on a converter or distributor, and confirm the specific product and grade rather than assuming a company-level result covers a whole catalog.
Is H-O Products on the Verified Components List?
H-O is a converter, not a component manufacturer, and this page makes no claim that H-O or any H-O part is on the list. H-O converts materials whose manufacturers publish AAMA test data; whether any particular converted part corresponds to a listed component has to be confirmed with H-O and with FGIA for the specific material and grade. If a specification or a purchasing gate requires listing status, ask for it explicitly and verify it at the source before it goes into a submittal.
What should I send H-O so engineering can confirm which published data applies?
Four things move it fastest: the callout as written (the AAMA or ASTM designation, type, class and any grade), the part geometry or drawing, the incumbent part — a number, a data sheet or a sample — and the documentation the project actually requires, whether that is a data sheet, a test report reference, a certificate of conformance or a listing check.
Engineering then confirms which published manufacturer data applies to the grade H-O would convert, and says plainly where a claim would have to come from the material manufacturer or FGIA instead.
Does a VCL listing mean my finished window is certified?
No. The VCL is a component program. Certifying a finished window, door or skylight is a separate process against AAMA/WDMA/CSA 101/I.S.2/A440 [4], with its own testing and labeling; verified components are an input to that, not a substitute for it. Reading a component listing as product certification is the most common misuse of the list in a submittal.
Glossary: terms used on this page
Quick reference for the program terminology used above.
Verified Components List (VCL)
The FGIA-administered list of window and door components whose manufacturers submitted samples that tested in compliance with the applicable specification at an AAMA Accredited Laboratory. [1]
FGIA
The Fenestration and Glazing Industry Alliance, formed by the merger of AAMA and IGMA. Publisher of the AAMA specifications and administrator of the certification and component-verification programs.
AAMA Gold Certification Label
The label carried by products certified under the AAMA program. Components that cannot demonstrate compliance with their applicable AAMA standards may not be used in products approved to bear it.
AAMA/WDMA/CSA 101/I.S.2/A440
The joint specification for windows, doors and skylights that references the component standards, which is why component verification matters upstream of a finished-unit certification. [4]
AAMA Accredited Laboratory
A laboratory accredited to perform the testing the component programs require. Testing outside that network does not satisfy the program.
CVPM
The Component Verification Program Manual — the document that sets which categories are eligible, which specifications apply, and what participation requires.
Converter vs component manufacturer
The manufacturer formulates and produces the material and owns its test data. A converter buys that material and cuts, slits, laminates or kits it to a drawing. Listings attach to the manufacturer's product, not to the conversion.
Last updated · Reviewed by H-O Products engineering (ISO 9001:2015 certified converter, Winsted, CT).
Standards, test methods & technical references
Program pages and specifications cited here, with live links to FGIA. Details current as of July 2026; confirm with FGIA before relying on any of it.
FGIA — Verified Components
The program page: why component verification exists, who is eligible, the participation steps, the initial 12-month listing, extensions to 36 months, and the resampling process. fgiaonline.org/verified-components
Verified Components List (search)
The searchable list itself — look up a VCL number, a manufacturer code from an FGIA Certification label, or a manufacturer name. fgiaonline.org — VCL search
FGIA Product Certification
The wider certification landscape: certified products directory, Gold Label certified profiles, insulating glass, thermal and accredited laboratories. fgiaonline.org/product-certification
AAMA/WDMA/CSA 101/I.S.2/A440
The joint specification for windows, doors and skylights that references the component standards behind the verification program. store.fgiaonline.org
AAMA 810.1
Voluntary Specification for Expanded Cellular Glazing Tape — an example of a component specification a tape data sheet may cite, distinct from a VCL listing. store.fgiaonline.org
FGIA store
Where current AAMA specification designations, titles and editions can be confirmed before a spec section is carried forward. store.fgiaonline.org
FGIA
The Fenestration and Glazing Industry Alliance — membership, technical resources and program contacts. fgiaonline.org
Get a converted component quote
Send the callout, the drawing, and the documentation the project requires. We typically respond within one business day with a material recommendation traced to published data and a plain statement of what H-O can and cannot certify.
See also: related H-O application pages
Where this standard is actually applied, and the adjacent fenestration reference pages.
Program information. Category names, listing terms, extension rules and resampling practice on this page are as published by FGIA and current as of July 2026. Programs and program documents change; confirm every detail against the FGIA program page and the Component Verification Program Manual before relying on it. H-O Products is not affiliated with FGIA and does not administer, interpret or speak for the Verified Components List.
Conversion scope. H-O converts roll, sheet and bun stock to drawing in Winsted, Connecticut: die-cut gaskets and blocks, slit tape, kiss-cut-on-liner parts and laminations, with material traceability and lot-code TDS records. H-O does not formulate or manufacture materials, does not extrude or mold profiles, does not test materials to AAMA specifications, and makes no claim of Verified Components listing for any converted part.