A yellow-dog contract was an employer prohibiting an employee from joining a labor union. Employers used to require employees to sign these contracts as a condition of being hired. The [[Norris-LaGuardia Act]] banned these contracts. | A yellow-dog contract was an employer prohibiting an employee from joining a labor union. Employers used to require employees to sign these contracts as a condition of being hired. The [[Norris-LaGuardia Act]] banned these contracts. |