As in the UK, Canadian messes are run by the mess committee, a group democratically elected by the members of the mess. One exception is on warships, where the president of the junior ranks mess is appointed by the commanding officer. The committee members are generally the same as those of their British counterparts, with the addition of special representatives for such things as sports, housing, morale, etc. These positions are normally spelled out in the mess constitution, which sets out the bylaws, regulations, and guidelines for such things as conduct of mess meetings, associate memberships, dress regulations within the mess, or booking of the mess by civilian organizations. The constitution and any amendments are voted upon by the members of the mess.