Request a final review from an accessibility expert.
Steps to take
In most cases, you may request a manual accessibility review from the accessibility team at your agency at least two weeks before a public launch. This ensures there’s enough time to conduct the review and make necessary changes. Since you’ve been manually testing throughout the project, this should be quick.
Depending on your project’s requirements, you may also choose to hire an outside firm to conduct testing as part of your QA.