§103 Nonenforceability of Undertakings in Conflict with Public Policy; “yellow Dog” Contracts

Summary

Declares that any promise in a hiring or job agreement that conflicts with the public policy in section 102 is against U.S. public policy and cannot be enforced in any U.S. court or used to get legal or equitable relief. This covers any written or spoken promise, clear or implied, between an employer (any business or group) and an employee or job applicant. It specifically bans promises where either side agrees not to join or be a member of a labor or employer organization, or agrees to quit or end the job if they join or remain a member.