Players with -2.0 or worse cannot enter 1.0 systems
Players with -2.5 or worse cannot enter 0.9 or above systems
Players with -3.0 or worse cannot enter 0.8 or above systems
Players with -3.5 or worse cannot enter 0.7 or above systems
Players with -4.0 or worse cannot enter 0.6 or above systems
Players with -4.5 or worse cannot enter 0.5 or above systems
Players with -5.0 or worse are kill on site (KOS) to all players in all systems
Traveling in a POD will render you safe from Concord but not other players, heh heh