CLEAN AIR THE CLEAN AIR ACT [lst Jtrly, 1964.1 1. This Act may be cited as the Clean Air Act. short title. 2. In this Act unless the context otherwise requires- "affected premises" means any premises on which there are industrial works, the operation of which is in the opinion of an inspector likely to result in the discharge of smoke or fumes or gases or dust into the air; "best practicable means" where used with respect to the prevention of the escape or discharge of noxious and offensive gases, or to the rendering of such gases, where discharged, harmless or inoffensive has reference not only to the provision and efficient maintenance of appliances adequate for preventing such escape or discharge, or for rendering such gases where discharged harmless or inoffensive, but also to the manner in which such appliances are used and to the proper supervision, by the owner, of any operation in which such gases are evolved; and in relation to the foregoing "practicab...