National Mediation Board

The National Mediation Board (NMB), established by the 1934 amendments to the Railway Labor Act of 1926, is an independent agency that performs a central role in facilitating harmonious labor-management relations within two of the nation’s key transportation modes–the railroads and airlines. Pursuant to the Railway Labor Act, NMB programs provide an integrated dispute resolution process to effectively meet the statutory objective of minimizing work stoppages in the airline and railroad industries.