Unfair Labor Practices (ULPs)
Definition - What does Unfair Labor Practices (ULPs) mean?
Any labor practice that contradicts employment laws in any way is deemed as unfair labor practices. There are set federal labor and employment laws that all states must follow. If an employer commits a breach of any of the laws, the employee can take them to a labor tribunal to recoup any loss that occured as a result of the unfair labor practice.
Justipedia explains Unfair Labor Practices (ULPs)
The National Labor Relations Board is the head government agency for labor practices in the US. Any breach in any way can result in charges levied against the employer and large punitive fines as well as recompense to the employee which could be equal to several years' wages.