The National Labor Relations Board (NLRB) is an independent agency of the United States government charged with conducting elections for labor union representation and with investigating and remedying unfair labor practices. Unfair labor practices may involve union-related situations or instances of protected concerted activity. The NLRB is governed by a five-person board and a General Counsel, all of whom are appointed by the President with the consent of the Senate. Board members are appointed to five-year terms and the General Counsel is appointed to a four-year term. The General Counsel acts as a prosecutor and the Board acts as an appellate judicial body from decisions of administrative law judges. As of 2013, the NLRB is headquartered at 1099 14th Street NW, Washington, D.C., with over 30 regional, sub-regional, and residential offices throughout the U.S.