To avoid any international incidents, only residents of Canada can post in the House of Commons (unless invited to speak by the Government).
Those visitors who have concerns about what is said here are encouraged to state their view in their embassy. IF they have no embassy, they may feel free to start up their own thread in the Diplomacy Forum.
For the Invision forums I've set up for the Scandinavia, Astrology, Green Party, and Coronado regions; I set up each forum that only forum members can post.
Or were you referring to, also, being a member in the Canada NationStates region?
This refers to who can post in this specific forum: 'House of Commons'