The Chatham House Rule is a rule that governs the confidentiality of the source of information received at a meeting. Since its refinement in 2002, the rule states: "When a meeting, or part thereof, is held under the Chatham House Rule, participants are free to use the information received, but neither the identity nor the affiliation of the speaker(s), nor that of any other participant, may be revealed."
Narrow passage, North Pacific Ocean. Extending off southeastern Alaska 150 mi (240 km) between the Admiralty and Kuiu islands on the east and the Chicagof and Baranof islands on the west, it is 3-10 mi (5-16 km) wide. It forms part of the Inside Passage between Alaska and Washington state