legislacion estados unidos de america fecha última actualización 25 01 2007 fuente 2004 2005 federal register http www access gpo gov su_docs fedreg frcont06 html nota la legislación seleccionada es considerada interés general sin que el criterio utilizado tenga ninguna otra implicancia enero air pollution control new motor vehicles and engines heavy duty vehicle engine standards onboard diagnostics requirements a257 g akamaitech net 7 257 2422 01jan20071800 edocket 07 110 htm pollutants hazardous national emission polyvinyl chloride copolymers production primary secondary copper smelting nonferrous metals zinc cadmium beryllium e7 532 shipbuilding ship repair operations 01jan20061800 2006 e6 22426 superfund program oil substances contingency plan priorities list 22298 of performance for stationary sources volatile organic compounds voc synthetic chemicals manufacturing industry