We target WCAG 2.2 level AA. This page states what is implemented and what has not been verified, rather than claiming conformance we have not tested.
Until those are complete, this is a statement of intent and implementation, not a conformance claim.
If something on this site prevents you from using it, tell us which page and what happened, including the assistive technology and browser you were using. Accessibility defects are treated as functional defects, not enhancements.