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A VPAT (Voluntary Product Accessibility Template) is a standardized self-assessment document that software vendors complete to describe how their product addresses accessibility standards, primarily WCAG (opens in new tab) and Section 508 (opens in new tab). It matters for procurement because organizations subject to accessibility mandates (federal agencies, universities, state entities) are required to evaluate the accessibility of technology before purchasing it. The VPAT is the primary mechanism vendors use to communicate that accessibility posture. Because it is self-reported with no independent verification, the quality and detail of a VPAT varies enormously, which is precisely why a structured VPAT evaluation tool is valuable.

A VPAT evaluator is a tool or process that assesses the content of a completed VPAT or ACR and translates vendor claims into actionable procurement intelligence. Reading a VPAT manually requires deep WCAG expertise: you need to know which criteria carry the highest impact, recognize when a vendor's remarks signal incomplete conformance, and translate dozens of "Partially Supports" entries into a coherent risk picture with no standard rubric to work from. VPAT Score automates that process with a deterministic, impact-weighted scoring engine that applies the same rubric to every VPAT it analyzes. The result is a comparable grade, a risk rating, and a full criterion-level breakdown, produced consistently, in seconds, with no prior WCAG expertise required from the reviewer.

The VPAT is the blank template, a standardized form published by the IT Industry Council (ITI) (opens in new tab) that defines the structure vendors must follow. An ACR (Accessibility Conformance Report) is the completed document that results when a vendor fills out that template for a specific product or service. In day-to-day procurement language, both terms refer to the same document. If a vendor says "our VPAT is available on request," they mean their completed ACR. VPAT Score accepts either term and processes the underlying document the same way regardless of what the vendor calls it.

AI language models read VPAT text and generate summarized opinions. They cannot consistently apply impact weights across criteria, may misinterpret conformance levels, produce results that vary between runs, and offer no comparable grade you can use across vendors. VPAT Score uses a deterministic, research-backed scoring engine: the same VPAT produces the same score every time, every criterion is evaluated against weights derived from public data (WCAG normative analysis, US disability prevalence, WebAIM Million failure prevalence, ADA Title III lawsuit citations, assistive-technology dependency), and results are expressed on the full 13-tier A+ through F scale and risk ratings that mean the same thing across every report your team has ever run. We present the facts. You make the final decision.

"Partially Supports" is one of four conformance levels defined by the VPAT template. It indicates that the product meets the accessibility criterion in some situations but not all. The critical issue with "Partially Supports" is that it covers an enormous range, from "works in almost every case except one edge scenario" to "works for some users but fails consistently for others." The significance depends entirely on which criterion it applies to. Partial support on 1.4.3 (contrast) (opens in new tab) is a different procurement risk than partial support on 2.1.1 (keyboard navigation) (opens in new tab). VPAT Score weights each criterion by its impact category so partial support on a critical criterion is reflected proportionally in the final grade.

Modern VPATs using the 2.x template framework can address WCAG 2.1 (opens in new tab) and WCAG 2.2 (opens in new tab) at Level A and Level AA, as well as the Revised Section 508 Standards (opens in new tab) and EN 301 549 (the European standard). In practice, most vendors report against WCAG 2.1 Level AA because it is the current Section 508 benchmark. VPAT Score analyzes against both WCAG 2.1 and WCAG 2.2 simultaneously, producing separate conformance scores and grades for each version so you can see exactly where a product stands against both the current standard and the emerging one.

Section 508 of the Rehabilitation Act (opens in new tab) requires U.S. federal agencies, and organizations that receive federal funding, to ensure that the information and communication technology they procure, develop, or use is accessible to people with disabilities. VPATs are the primary mechanism vendors use to communicate Section 508 conformance. When a federal agency or university issues an RFP, they typically require vendors to provide a completed VPAT or ACR demonstrating how their product addresses Section 508 (opens in new tab) and WCAG Level AA requirements. VPAT Score's evaluation output includes all the information needed to document Section 508 due diligence in a procurement record.

No. A VPAT is a vendor self-assessment. The vendor describes their own product's conformance with no independent verification required. An accessibility audit is a structured independent evaluation conducted by accessibility professionals who test the product directly against WCAG or Section 508 criteria. VPATs are the standard starting point for procurement because they are widely available and free to request; independent audits are more authoritative but require hiring testers and coordinating access to the product. VPAT Score helps procurement teams extract the maximum intelligence from the VPAT they already have, without waiting for an audit that may never come.

Not by the document itself. The VPAT has no built-in grade or threshold. It is a disclosure form, and a vendor can honestly report significant accessibility gaps and still be selling that product tomorrow. But the more important question is what those gaps mean for the people who will use the software. When a product does not support keyboard navigation or screen reader use, real people are excluded from participating in tools their organization depends on. Accessibility is not just a compliance checkbox. VPAT Score gives procurement teams an objective grade and a clear picture of where the gaps are, so they can weigh their compliance obligations alongside their responsibility to every member of their community.

The ITI recommends that vendors update their ACRs when a new version of a product releases, when significant accessibility improvements are made, or at minimum annually. In practice, many vendors update infrequently. VPAT Score's re-analysis feature lets procurement teams re-score a previously uploaded VPAT whenever a vendor provides an updated ACR, preserving the original scoring record while adding the new assessment. You always have a historical audit trail of how a vendor's accessibility conformance has changed across contract cycles.

Yes. VPAT Score's vendor portfolio feature lets you group multiple VPAT evaluations under a single vendor, then view a combined multi-product report that aggregates scores across all reviewed products. This is especially useful when a vendor offers a suite of products, each with its own VPAT, and your organization needs to understand the overall accessibility picture before committing to a platform purchase. You can also generate a single email summary that covers all products in the evaluation, with an aggregate grade and risk rating.