U.S. flag

An official website of the United States government

Government Website

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Safely connect using HTTPS

Secure .gov websites use HTTPS
A lock () or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.


  1. Home
  2. News
  3. Publication Library
  4. Trusted Tester Fact Sheet and Training Information

Trusted Tester Fact Sheet and Training Information


The Department of Homeland Security Office of Accessible Systems & Technology is committed to the development of the common testing approach for accessibility compliance and conformity, named Trusted Tester Version 5 (TTV5).  TTV5 provides a code-inspection based test approach for determining web content conformance to the Section 508 standards.


  • Promotes a common understanding of the 508 standards.
  • Unifies the test process.
  • Unifies the set of test tools.
  • Unifies test results reporting.
  • Test results can be shared for common applications (i.e. Shared Services, COTS, etc.)
  • Supports IT governance by integrating Section 508 into the development and acquisition lifecycle.
  • Promotes the successful adoption of the changes required to integrate the TTP within an agency.
  • Improves ability for developers to reproduce test results which expedites remediation of nonconformance.

More Information

Section 508 Trusted Tester Conformance Test Process Version 5, including Training & Trusted Tester Certification Information 

Other DHS Section508 Conformance Test Processes 

Last Updated: 01/27/2022
Was this page helpful?
This page was not helpful because the content