As posted on the Department of Labor Website (www.dol.gov):
Union Member Rights and Officer Responsibilities Under the LMRDA
The Labor-Management Reporting and Disclosure Act (LMRDA) guarantees certain rights to union members and imposes certain responsibilities on union officers. The Office of Labor-Management Standards (OLMS) enforces many LMRDA provisions while other provisions, such as the bill of rights, may only be enforced by union members through private suit in federal court. For more information contact the nearest OLMS field office listed on page 2 of this fact sheet.