At the start of Rubicon, all existing high-sec customs offices will be controlled by an NPC organization. Players can destroy these offices and then deploy a construction gantry. There are restrictions on transferring ownership and attacking offices owned by players, of course, but in most respects these offices function as their equivalents do in low-sec and nullsec. Players can control taxes, transfer rates, and even outright ban others from using the planet -- which can be circumvented with surface-side launches. It's another step in letting players control more of the game's infrastructure, something that should be welcomed by those looking to put a little more play into the more secure parts of the game.