Pilots can jam to conduct electronic warfare and confuse other ships' systems. When a ship performs the action, it jams. A JAMMING ship is a ship that is attempting to jam by performing the following steps:
A ship is JAMMED if it has at least one jam token. Jam tokens are circular, orange tokens. When a ship becomes jammed, the player whose effect caused the ship to gain the jam token chooses for the ship to either remove one of its green tokens or break one of its locks. If either effect is resolved, it removes the jam token. If the ship does not have any green tokens or is not maintaining any locks, it remains jammed.
After a jammed ship gains a green token or acquires a lock, the jammed ship removes that token or breaks that lock. Then it removes one jam token.