Section 210(f) of the Congressional Accountability Act (CAA) requires the Office of Compliance to conduct biennial inspections of the Legislative Branch to ascertain compliance with the Americans with Disabilities Act (ADA) and report its findings to Congress.

ADA Biennial Inspection Report for the 113th Congress (Oct 2016)
ADA Biennial Inspection Report for the 112th Congress (July 2014)
ADA Biennial Inspection Report for the 111th Congress (August 2012)
ADA Biennial Inspection Report for the 110th Congress (Dec 2009)
ADA Biennial Inspection Report for the 109th Congress (Nov 2007)
ADA Biennial Inspection Report for the 108th Congress (Nov 2005)
ADA Biennial Inspection Report for the 107th Congress (Dec. 2002)