economic impact analysis of the miscellaneous metal parts and products surface coating neshap final report epa 452 r 03 018 august 2003 by us environmental protection agency office air quality planning standards innovative strategies economics group c339 01 research triangle park nc 27711 this has been reviewed emission division united states approved for publication mention trade names or commercial is not intended to constitute endorsement recommendation use copies are available through library services from national technical information 5285 port royal road springfield va 22161 page 4 small business 1 introduction under section 112 d clean act caa developing a emissions standard hazardous pollutants source category mmpp encompasses all industries that