《清洁空气法》修正案大幅增加了挥发性有机化合物（VOC）和有害空气污染物（HAP）控制的要求。此外，国会已将废物最小化原则作为美国的既定政策和国家法律。预先上漆的金属传达了与这一政策一致的信息。实际安装证明，在生产预涂金属时，可以实现VOC控制、能源效率、废物最小化和降低工厂运营成本。

THE CLEAN AIR ACT AMENDMENT DRAMATICALLY INCREASES THE REQUIREMENTS FOR BOTH VOLATILE ORGANIC COMPOUNDS (VOC) AND HAZARDOUS AIR POLLUTANTS (HAPS) CONTROL. IN ADDITION, CONGRESS HAS MADE THE PRINCIPAL OF WASTE MINIMIZATION THE STATED POLICY OF THE UNITED STATES AND THE LAW OF THE LAND. PREPAINTED METALS CARRY A MESSAGE THAT IS IN STEP WITH THIS POLICY. ACTUAL INSTALLATIONS HAVE PROVEN THAT VOC CONTROL, ENERGY EFFICIENCY, WASTE MINIMIZATION, AND LOWER PLANT OPERATING COSTS CAN BE ACCOMPLISHED IN THE PRODUCTION OF PREPAINTED METALS.