Accessibility in procurement: what to ask vendors and put in an RFP

To buy accessible technology, name the standard, version and level in the RFP, require each vendor to submit an Accessibility Conformance Report with its test method and known gaps, test the product yourself before you sign, and write repair and re-testing duties into the contract. A vendor's report is its own account, so treat it as a claim to check, not proof.

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Procurement is the buying process, from market research and a request for proposal (RFP) to the signed contract and every later release. Accessibility is cheapest to ask for at the start. Section508.gov, the U.S. government's Section 508 resource site, says accessibility requirements belong in the process from the beginning, so nothing surprises the buyer during or after implementation (Section508.gov, Buy Accessible ICT). Once a product is in use, every barrier is a request to the vendor, and the leverage of an unsigned contract is gone.

An Accessibility Conformance Report (ACR) is a vendor's completed VPAT®, the free template from the Information Technology Industry Council (ITI): the vendor tests its product against a standard and records the results (ITI's VPAT page). This guide is the buyer's side: deciding, writing the RFP, asking, reading the answer and testing. The seller's side is in our VPAT and ACR guide. This page is general information, not legal advice; what you must buy, and against which standard, depends on the law and contract that apply to you.

What the law says about buying accessible technology

Rules that name procurement mostly cover public bodies. The table summarizes four. Private buyers should start with our laws finder.

Four rules that bear on a public body's purchases of technology
RuleWhat the source says about buyingStandard
U.S. federal agencies: Section 508Requirements belong in the process from the start. If no accessible commercial solution exists, the agency should buy the one that "best meets" the standards consistent with business needs, and give an alternative means of access on request (Section508.gov).Revised 508 Standards (WCAG 2.0 Level A and AA)
U.S. state and local governments: ADA Title IIGovernments that use contractors must make sure they follow Title II, and the web rule reaches content a vendor builds or runs for them. The exception for third-party posts does not cover a government's contractor or vendor (ADA.gov, DOJ's small entity guide).WCAG 2.1 Level AA, from April 26, 2027 (population 50,000 or more) or April 26, 2028 (under 50,000, and special districts)
EU public buyers: Directive 2014/24/EUFor procurement meant for use by people, Article 42(1) says technical specifications must, except in duly justified cases, take accessibility criteria for persons with disabilities, or design for all users, into account, and refer to any mandatory EU accessibility requirements (Article 42 on legislation.gov.uk).Names none. Our EN 301 549 page covers the EU's ICT standard.
Canada: Accessible Canada RegulationsPublic sector and large private organizations (500 or more employees) must obtain a conformity assessment with gap analysis for in-scope technology bought on or after December 5, 2028. A VPAT covers it, and copies must be kept for four years (Canada.ca).CAN/ASC-EN 301 549:2024

Where a law names a standard, name it in the RFP so the vendor's report answers the question your duty asks. Where no law reaches the buyer, the contract is the only place to require accessibility. Our Section 508 guide and WCAG, ADA and Section 508 compared explain how the U.S. rules differ.

Decide what you need before you write the RFP

  1. List who uses the product and for what. Staff, the public or both, and the three to five tasks that matter most, such as signing in, searching, paying or downloading a report. They set the scope of the vendor's report and become your test script. W3C says conformance applies to full pages and, where a page is part of a process, to every page in it (W3C, Understanding Conformance).
  2. Pick the standard, version and level. Use the one your law names. Otherwise W3C's evaluation methodology calls Level AA of WCAG 2 the generally accepted and recommended target (WCAG-EM 2.0). Newer WCAG versions keep the older criteria, with an exception for 4.1.1 Parsing (see which WCAG version applies). ITI publishes four VPAT editions (508, EU, WCAG, and INT, which combines the three), so name the one you want.
  3. Collect reports before you score. Section508.gov's market research step asks federal buyers to look for at least two possible solutions and record each one's vendor, version and fit. Gather reports from your whole shortlist first, so the gaps sit side by side.
  4. Write a short buying policy once. W3C's planning and policies pages include guidance on developing organizational policies. It says a policy should cover procured third-party content, and its example favors providers on their accessibility conformance claims.

What to put in the RFP

Section508.gov publishes sample clauses for federal solicitations, to be tailored to each purchase, and calls its acceptance criteria helpful but not legally required (Define Accessibility Criteria in Contracts). The table follows their structure for any buyer. Your procurement office or lawyer should turn it into contract language.

Eight requirements an RFP can include and where each idea comes from
RequirementWhat to ask forBasis
Standard and levelThe standard, version and level, and the VPAT edition you acceptYour law; ITI's editions
ScopeThe product, release, user roles and the tasks that must work from start to finishW3C conformance rules
Report with the bidAn ACR for each product, based on its VPAT, with its evaluation methods, the core functions people with disabilities cannot use, and the severity and user impact of known issues; say which release it must coverSection508.gov, Request Accessibility Information
Right to testThe right to test the release you would receive, before award and again before acceptance. A trial version does not count.Same page
Demonstration and acceptanceA working demonstration showing where the product does and does not conform, and written notice when it fails the standard claimedSection508.gov sample acceptance criteria
RepairRepair or replacement at the vendor's cost, within a set time, when the product fails what the vendor claimedSame sample clauses
Updates and hostingUpgrades and replacements must not lower the conformance present at award; for a hosted product, the right to keep testingSame sample clauses
People and recordsVendor staff with the skills to meet the standard, and testing records available on requestSame sample clauses

Say what an incomplete answer costs. For federal awards, Section508.gov says the ACR must be complete and submitted as instructed to be considered, and advises keeping accessibility information out of any page limit. State your own rule in the RFP.

Buying custom work? Section508.gov's sample clauses require custom-developed technology to conform to the Revised 508 Standards before delivery and before final acceptance, and, where validation cannot happen before award, ask the offeror to describe its test process and provide the testing results.

Sample wording to adapt, invented for illustration and not legal text:

The Offeror shall submit an Accessibility Conformance Report on the
current ITI VPAT edition for [standard, version, level], covering
release [x.y] of [product], with its evaluation methods, and shall
explain every entry other than "Supports".

What to ask each vendor

Put these questions in the RFP or ask them in a call. The middle column says what a useful answer contains.

Seven questions for a vendor, what a useful answer includes and why it matters
QuestionA useful answer includesWhy it matters
Which release does your report cover, and when was it written?A version number, a date and a plan to update the reportThe Section508.gov FAQ says an updated ACR may be required after a version change or bug fix.
How was it tested, and by whom?Methods, tools, assistive technologies, the pages and tasks sampled, and who testedW3C says no tool alone can determine whether a site meets accessibility standards, so "an automated scan" is not a full answer.
Did anyone outside your company check it?The evaluator, the scope and the dateITI says a VPAT should not need third-party review, but a solicitation may require one. Section508.gov recommends that buyers do their own conformance testing where possible (Understanding Vendor Claims).
Which criteria are Partially Supports or Does Not Support, and what can a user not do?Named features, the effect on users, a workaround and a fix dateSection508.gov reads both entries as non-conformance and says to check which criteria are affected.
Why are some rows Not Applicable or Not Evaluated?A reason for every Not Applicable; for Not Evaluated, a plan and a timelineSection508.gov says Not Evaluated gives no assurance of accessibility.
What do you embed from other companies?A list of third-party parts, such as payments, chat, video and maps, and what you know about their accessibilityW3C's policy guidance names payments, video streaming and mapping, and Section508.gov cautions that resellers and aggregators may not control conformance.
What happens when we report an accessibility bug, and how are new releases tested?A reporting route, an owner, a target time and testing in every release cycleSection508.gov says to retest each new version against the original terms. The reporting route and target time are GotAlt's suggestion.

How to read the answers

Section508.gov's guide to vendor claims reads the terms this way. Supports means the product fully conforms to the relevant standards. Partially Supports and Does Not Support mean it does not conform, so find out which criteria are affected. Not Applicable needs a stated reason and is not non-conformance. Not Evaluated gives no assurance.

ITI adds that a conforming product may still be hard for some users with disabilities, that a product with gaps may work for a user who does not need the missing feature, and that there is no pass or fail scale. Read the gaps against your task list, not a count of rows.

Test the product before you sign

Section508.gov says an expert review can indicate accessibility but rigorous testing is required to validate vendor claims, and it recommends testing before award or deployment (Buy Accessible ICT). For web content it recommends the DHS Trusted Tester process. Most other buyers can run a shorter script on the vendor's real release in an afternoon:

  1. Run each task from your scope list, start to finish, signed in, with realistic data.
  2. Use only the keyboard, following our keyboard accessibility test.
  3. Zoom in and narrow the window and confirm the tasks still work (see our zoom and reflow guide).
  4. Try a screen reader on the main task. How screen readers read a page explains what you should hear.
  5. Run the accessibility bookmarklet on each screen. It works behind a login. Read a clean result with what automated testing can and cannot find in mind.
  6. Open the PDFs and exports the product produces with the PDF accessibility checker.

Log each failure against the matching row of the vendor's report, send the list to the vendor before you decide, and score the reply. If no product fully meets the standard, Section508.gov tells federal buyers to choose the one that best meets it consistent with business needs. Any buyer can do the same, then write each remaining gap and its fix date into the contract.

After you sign

Section508.gov says technology must remain accessible for the whole contract period and tells buyers to retest each new version against the original terms. Put a dated check on the calendar for each major release and renewal, ask for the updated report and keep your test logs. See how often to test accessibility and monitoring versus an audit.

Check it yourself

These free tools cover the buyer's side:

  • Which laws apply to me? asks where your organization is based, where your customers are and what kind of organization you are, then lists the laws with sources. Use it to find the standard to name in the RFP.
  • The accessibility bookmarklet checks a page in your own browser, including behind a login, so you can run it on a vendor's demo account. It cannot tell whether a page works with a keyboard or a screen reader.
  • The WCAG checklist tracks all 55 Level A and AA criteria with notes and exports CSV: a test log to compare with a vendor's report.
  • The PDF accessibility checker reads a PDF in your browser and checks its tags, language, title, alt text, headings and tables.
  • Scan my site for free reads the public pages of a website, such as a vendor's public site. It cannot sign in.

None of these writes or checks a conformance report. A clean result shows only that its checks found nothing.

Buying accessible technology questions

What accessibility requirements should an RFP include?

The standard, version and level the product must meet; a current Accessibility Conformance Report from each bidder that states its test method; the right to test before award; a demonstration before acceptance; repair at the vendor's cost when the product fails its claims; and a promise that updates will not lower conformance. Section508.gov's sample clauses are a starting point. Have counsel review your wording.

What should I ask a vendor about accessibility?

Ask which release and standard its report covers, how and by whom it was tested, which criteria are only partially supported and what a user cannot do as a result, why any rows say Not Applicable or Not Evaluated, what it embeds from other companies, and how it handles accessibility bugs and new releases. Then compare the answers with your own test of the product.

Is a VPAT enough to show a product is accessible?

No. A VPAT is a template. Once it holds test results it is an Accessibility Conformance Report, the vendor's own account of its product. ITI says there is no VPAT certification and no pass or fail scale. Section508.gov says rigorous testing is required to validate vendor claims, so use the report as a starting point and test the product.

Who is responsible for accessibility when we buy a vendor's software?

It depends on the law that applies. For U.S. state and local governments, DOJ says governments must make sure contractors follow Title II, and the web rule covers content a vendor builds or runs for them. Other buyers' duties vary by country and sector. This is general information, not legal advice; ask a lawyer about your situation.

Can we make a vendor fix accessibility problems after we buy?

Only if the contract says so. Section508.gov's sample clauses for federal buyers require the vendor to repair or replace a failing item at no cost within a period the buyer sets, and bar upgrades from lowering the conformance present at award. Without terms like these you may be limited to asking. Have counsel adapt the wording to your contract.

What if no product fully meets the standard?

Section508.gov tells federal buyers to choose the product that best meets the standards consistent with business needs and to give an alternative means of access on request. Other buyers can apply the same logic: compare the reports and your own test results, then record each gap, its workaround and a fix date in the contract.

Should we accept a vendor's claim that its product is fully accessible?

Treat it as a claim to verify. In April 2025 the FTC approved a final order requiring accessiBe to pay $1,000,000, after a complaint alleging that its claims about making websites meet WCAG were false or unsubstantiated (FTC). Ask for the report, the test method and the known gaps, then test the product.

Take a first look at a vendor's public pages

The free scan runs 16 rule-based checks on up to 3 pages of a site you give it. It cannot sign in, so use the bookmarklet for pages behind a login. No signup.

Scan my site for free