United States Congress Office of Compliance
The United States Congress Office of Compliance is an independent federal agency within the legislative branch of the United States government. It was created to administer and enforce the Congressional Accountability Act of 1995. It is headquartered in Washington, D.C.
The office is made up of a five-member, non-partisan Board of Directors appointed to five-year terms by the majority and minority leaders of both the United States House of Representatives and the United States Senate. The members of the Board of Directors come from across the United States, and are chosen for their expertise in employment and labor law. The Office of Compliance also has four statutory employees appointed by the Board of Directors who carry out the day-to-day functions of the office.
The office is responsible for fielding complaints about discrimination and harassment among the Capitol's workforce. In fiscal year 2013, allegations increased 20 percent from 2012, a change attributed to more people coming forward, not a major change in workplace behavior. 
- Official site