What Does a Section 508 Tester Actually Do? A Look at the Role Behind the Compliance

If you have ever applied for a federal accessibility job or tried to explain your work to someone outside the field, you know the challenge. The title "Section 508 Tester" means something very specific to those inside the world of federal IT compliance — but to everyone else, it can feel invisible.

That invisibility is a problem. The work is skilled, technical, and consequential. When it is done well, millions of people with disabilities can access government services, benefits, and information. When it is done poorly, or not at all, those same people are locked out.

This post breaks down what Section 508 testers actually do, what tools and standards they work with, and where to find job resources if you are building a career in this space.

The Foundation: What Is Section 508?

Section 508 is an amendment to the Rehabilitation Act of 1973. It requires federal agencies to make their electronic and information technology accessible to people with disabilities — including both employees and members of the public.

In 2018, the Access Board revised the Section 508 standards to align with the Web Content Accessibility Guidelines (WCAG) 2.0 Level AA. That alignment meant federal accessibility work became closely tied to the same international standards used in the private sector, with the addition of specific federal requirements for documents, software, and hardware.

What this means in practice: Section 508 testers are responsible for evaluating whether federal websites, web applications, documents, software, kiosks, and other IT systems meet those standards. The scope is broad, and the stakes are real. Federal agencies can face legal action, audits, and congressional scrutiny when they fall short.

Core Job Responsibilities

The day-to-day responsibilities of a Section 508 tester vary depending on the agency, contract, and scope of the project. But most roles share a common set of core duties.

Conformance Testing

The primary job is evaluating digital products against Section 508 standards. This includes running automated scans using tools like Axe, WAVE, or the DHS Trusted Tester process, followed by manual testing to catch issues automated tools cannot find. Manual testing typically involves navigating with a keyboard only, testing with screen readers such as JAWS, NVDA, and VoiceOver, checking color contrast, verifying form labels and error messages, and reviewing document structure in PDFs and Word files. Start your Testing with Abra's 11 days Access Training testing apps.

Writing Accessibility Conformance Reports (ACRs)

Section 508 testers are often responsible for producing Accessibility Conformance Reports, also called ACRs, based on the Voluntary Product Accessibility Template (VPAT). An ACR documents the accessibility status of a product against each applicable standard, noting what supports accessibility, what partially supports it, and what does not. These reports are used by procurement officers when agencies buy technology, and they are increasingly required in federal solicitations.

Trusted Tester Methodology

Many federal agencies and their contractors follow the DHS Trusted Tester process, a standardized methodology developed by the Department of Homeland Security to ensure consistent and reproducible accessibility testing results. Trusted Tester certification is a widely recognized credential in the federal space, and many job postings require or prefer it. Testers who are certified can produce findings that agencies treat as authoritative.

Document Remediation

Testing is only part of the work. Many Section 508 testers are also involved in remediating inaccessible documents — primarily PDFs and Microsoft Office files. This means fixing reading order, adding alt text to images, tagging tables, ensuring logical heading structure, and verifying that forms are operable with a keyboard and screen reader. Document remediation is its own skill set, and professionals who do it well are in demand.

Consulting and Training

Senior Section 508 testers often move beyond pure testing into advisory roles. They may consult with developers and designers early in a project to prevent accessibility issues before they get built in, deliver training to agency staff, review procurement language to ensure accessibility requirements are included in contracts, or serve as the 508 coordinator for an agency or program office.

Section 508 testers work with a specific set of tools that are worth knowing if you are new to the field or hiring for these roles.

• Screen readers: JAWS (Job Access With Speech) is the most commonly required in federal testing. NVDA is an open-source alternative used in some contexts. VoiceOver is used for Apple device testing.

• Automated scanning tools: Axe by Deque, WAVE by WebAIM, Accessiblyapp and the Accessibility Insights suite from Microsoft are among the most widely used for web testing.

• PDF tools: Adobe Acrobat Pro is the standard for PDF remediation and inspection. CommonLook is used in federal environments for advanced PDF accessibility work.

• Color contrast analyzers: The Colour Contrast Analyser from TPGi is a standard tool for manually verifying text and UI contrast ratios.

• VPAT and ACR templates: The IT Industry Council (ITI) maintains the current VPAT templates used to generate conformance reports.

What Makes Someone Good at This Work

The best Section 508 testers combine technical knowledge with clear communication. You need to understand how assistive technologies work, what WCAG success criteria actually mean in practice, and how to explain a failure to a developer who has never used a screen reader in their life.

Attention to detail is non-negotiable. Accessibility issues are often subtle — a missing label, a color contrast ratio that fails by a hair, a focus indicator that disappears on one browser but not another. Testers who catch those things consistently build reputations quickly.

Persistence matters too. Federal IT environments can be slow to change, and testers often find themselves documenting the same issues across multiple audit cycles. Knowing how to document findings in a way that drives action, not just compliance checkboxes, is a real skill that distinguishes experienced professionals from those just starting out.

Credentials and Certifications Worth Knowing

The Section 508 and broader accessibility field has a growing set of professional credentials. Here are the ones that matter most for testers working in federal contexts.

• DHS Trusted Tester Certification: The most directly relevant credential for federal 508 testing. It certifies that testers follow a consistent, reproducible methodology. The DHS Office of Accessible Systems and Technology (OAST) administers the program, and training is available at no cost.

• CPACC (Certified Professional in Accessibility Core Competencies): Offered by the International Association of Accessibility Professionals (IAAP), CPACC covers the conceptual foundations of accessibility across disability types, standards, and legal frameworks. It is widely recognized in both federal and private-sector hiring.

• WAS (Web Accessibility Specialist): Also from IAAP, WAS is a more technical credential covering hands-on web accessibility testing and remediation. It pairs well with CPACC for a strong credential combination.

• CPWA (Certified Professional in Web Accessibility): A combined certification from IAAP that recognizes both CPACC and WAS. Holding both signals a broad and deep level of expertise.

Why This Work Matters

Section 508 compliance is sometimes framed as a checkbox exercise. That framing misses the point entirely.

When a veteran cannot access benefits information online because a PDF is untagged, that is not a compliance gap — that is a person being shut out of something they have earned. When a federal employee with a visual impairment cannot use their agency's internal HR system because it was never tested, that is not a technical oversight — that is a workplace that excludes them.

Section 508 testers are the people who find those failures before they reach users. The work is meticulous and sometimes thankless, but it is also among the most directly impactful roles in the digital accessibility field. Every issue documented and remediated is a barrier removed for someone who needed it gone.

If you are in this field, or considering it, the job is worth understanding in full — not just as a compliance function, but as a practice with real human stakes.