Closing the door on a tactic that some Pennsylvania companies sought to use to reduce competition in the workforce, the state Supreme Court has ruled that an agreement between trucking companies not to poach employees was unenforceable and goes against public policy.

The state Supreme Court issued a unanimous ruling Thursday in Pittsburgh Logistics Systems v. Beemac Trucking, which had presented the court with a first-impression issue of whether no-hire provisions, also called no-poaching agreements, should be enforceable in the state.