May 30, 2008 - Affected Entities: Entities potentially affected by this action are the owners or operators of polycarbonate, acrylic and modacrylic fiber, acetal resin and hydrogen fluoride production facilities. Respondents/Affected Entities: Polycarbonate, acrylic and modacrylic fiber, acetal resin and hydrogen fluoride production facilities. Respondents/Affected Entities: Reinforced plastics composites production facilities.