Before a new rule comes into effect, a corporation must give at least 30 days written notice. The notice must be: delivered to anyone living in the development (for example, owners and tenants) or posted in an open and conspicuous common area (to which all owners and occupants have access) and served to owners who do not live in the development A rule has no force or effect until 30 days after all written notices of the new rules have been provided or served. In certain situations, a condominium corporation does not need to give a notice period when implementing a new rule. For example, a corporation can implement a new rule that comes into effect immediately upon written notice if the rule: addresses a safety concern, security concern or an emergency (for example, a fire, explosion or flood) and, stops when the safety concern, security concern or emergency no longer exists.