What are the two categories of complaints US Federal Service Labor-Management Relations Statute (5 USC.)?

The two categories of complaints under the US Federal Service Labor-Management Relations Statute (5 USC) are "unfair labor practices" and "prohibited practices." Unfair labor practices involve actions by either labor organizations or agencies that violate the rights of employees or the obligations under the statute. Prohibited practices refer specifically to actions that are restricted by the statute, such as interference with employees' rights to organize or bargain collectively.