There is no official WCAG certification: the W3C writes WCAG and offers free learning material, but it does not certify people, companies or websites. When a job ad or a client asks for a certified person, they usually mean a professional credential from IAAP, whose full name is International Association of Accessibility Professionals, or, for US federal work, the Trusted Tester program.
This guide sorts the options by role, explains what each exam covers, points to the good free courses, and gives a study plan. It does not list fees, because they change; it does explain what makes a course or exam cost more.
Quick facts
From W3C
No certificate; free guidance, tutorials and the Digital Accessibility Foundations courseCore credential
IAAP CPACC: disability, laws, universal design; not technicalTechnical credential
IAAP WAS (Web Accessibility Specialist): WCAG, ARIA, testing and fixesSenior credential
IAAP CPWA, awarded to people who hold both CPACC and WASFree option
Trusted Tester, run by the US Department of Homeland Security for Section 508 testingWebsite badges
A site cannot be WCAG certified by W3C; a conformance claim is the owner's own statement
Is there an official WCAG certification?
No. The W3C Web Accessibility Initiative (WAI) publishes WCAG, the techniques and the Understanding documents, and it runs free courses. It does not test or certify individuals, and it does not inspect or certify websites.
Be careful with products that sell a WCAG certified seal for a website. A site either meets the criteria on each page or it does not, and any claim is made by the owner, who stays responsible for it. Our page on accessibility icons and WCAG logos explains how W3C's own conformance logos work.
For people, the credentials that employers recognize come from IAAP and, in US government work, from the Trusted Tester program.
The main web accessibility certifications compared
| Credential | Run by | What it covers | Best for |
|---|---|---|---|
| CPACC (Certified Professional in Accessibility Core Competencies) | IAAP | Disabilities and assistive technology, accessibility law and policy, universal design | Managers, designers, content leads, anyone new to the field |
| WAS (Web Accessibility Specialist) | IAAP | WCAG in depth, ARIA, testing methods, writing fixes | Developers, testers, auditors |
| CPWA (Certified Professional in Web Accessibility) | IAAP | Awarded for holding both CPACC and WAS | Specialists and consultants |
| Trusted Tester | US Department of Homeland Security | A set, repeatable Section 508 test process | Testers on US federal projects |
| Digital Accessibility Foundations | W3C WAI | Course, not an exam: principles, users, roles, WCAG basics | Beginners in any role |
IAAP describes each exam, its outline and how to apply on accessibilityassociation.org.
Free digital accessibility training
You can learn most of what the paid courses teach without spending anything, if you are disciplined.
- The W3C WAI Digital Accessibility Foundations course covers web accessibility fundamentals: who is affected, the business and legal case, and how WCAG is organized.
- The Trusted Tester training teaches a step by step test process and ends in a certification exam.
- W3C tutorials on images, forms, tables and menus, plus the ARIA Authoring Practices, show correct code patterns.
- The WCAG 2.2 Understanding documents explain the intent behind each criterion with examples.
On this site, WCAG explained and the WCAG checklist give you a structured path through the criteria.
Web accessibility training for developers
A good developer course spends most of its time in code and in assistive technology, not in slides. Look for these topics:
- semantic HTML first: buttons, links, labels, headings, lists, tables and landmarks;
- keyboard support, focus order and visible focus;
- forms: labels, instructions, error messages and status messages;
- ARIA, including when not to use it (see ARIA labels);
- custom widgets such as tabs, menus, dialogs and comboboxes;
- testing with real screen readers, covered in screen reader testing;
- color contrast, zoom, reflow and text spacing.
For the best web accessibility course for a web developer, the deciding factor is practice: you should leave having fixed broken components yourself.
How to choose a course or WCAG certification
Ask these questions before you enrol:
- Does it match your job? A content editor needs alt text, headings and plain language more than ARIA.
- Is it current? It should teach WCAG 2.2, including focus not obscured, target size and accessible authentication.
- Is it hands on? Hands-on exercises, using the keyboard and a screen reader, beat hours of video.
- Who teaches it? Trainers who audit sites for a living, and courses that include disabled users, teach what really breaks.
- What does it promise? Walk away from any course that promises to make you or your site compliant.
Cost depends on length, live teaching versus recorded video, whether an exam fee and study guide are included, and any membership or renewal rules.
How to prepare for the IAAP exams
Download the content outline for your exam from IAAP and turn it into a checklist. Then:
- For CPACC, build breadth: types of disability, assistive technologies, the main laws in several regions (see accessibility laws), and universal design principles.
- For WAS, build depth: read every WCAG 2.2 A and AA criterion with its Understanding page, and be able to say which one a given bug fails.
- Practise on real sites every week. Write short issue reports with the criterion, the impact and a fix.
- Learn the main screen reader commands well enough to test a form and a dialog.
- Review weak areas with a study partner by explaining each topic aloud.
IAAP asks certified members to keep up continuing education to keep a credential. Check its site for the current rules before you plan your study time.
Training for a whole team
One certified specialist cannot catch everything. Short, role based sessions spread the work:
- designers learn contrast, focus states, target size and annotations (see accessible web design);
- content editors learn alt text, headings, link text and accessible documents;
- QA staff learn keyboard and screen reader checks;
- product owners learn the law, the levels and how to write accessibility into acceptance criteria.
When the team is trained, an outside accessibility audit becomes a check rather than a rescue.
Questions people ask
How much does WCAG certification cost?
There is no WCAG certification from W3C. Professional exams from IAAP charge fees that depend on membership and the exam you take, so check its site for the current amount. The W3C foundations course and Trusted Tester training are free.
Which web accessibility certification is best?
It depends on your work. CPACC suits people who need broad knowledge of disability and law; WAS suits developers and testers. Trusted Tester is most useful for US federal projects.
Can a website be WCAG certified?
Not by W3C. A website owner can make a conformance claim for specific pages and a level, but W3C does not review it. Seals sold by other companies are not an official stamp.
Is the Trusted Tester program free?
Yes, the training and certification are run by the US Department of Homeland Security at no charge. It teaches a Section 508 test process that is useful even outside government work.
Do I need a certificate to work in accessibility?
No, but it helps you get past screening for some roles. A portfolio of real audits, fixed components or alt text samples often matters more in interviews. See our page on accessibility jobs for ideas.
What is a good web accessibility certification course for beginners?
Start with the free W3C WAI Digital Accessibility Foundations course. Then decide whether you want the broad CPACC path or the technical WAS path, and study the exam outline.