Under provisions of the Clean Air Act, each state and territory has developed plans to achieve and maintain the clean air standards set by the U.S. Environmental Protection Agency to protect the public's health and welfare. These 'implementation plans,' as they are called, contain the states' blueprints for action to reduce air pollution emissions so that the protective levels are met and will continue to be met. It is important that the public is aware of the provisions of these implementation plans, and the progress being made in carrying them out. The document contains a list of the locations, as established by the states, where information files are maintained for public review.