Heavy Duty Wood Preservatives

This Proposed Re-evaluation (PRVD) summarizes the science evaluation for creosote, pentachlorophenol, chromated copper arsenate and ammoniacal copper zinc arsenate and presents the reasons for the proposed re-evaluation decision. It also proposes additional risk-reduction measures to further protect human health and the environment. The information is presented in two parts: i) the Overview describes the regulatory process and key points of the evaluation (i.e. the Science Evaluation summary); ii) while the full Science Evaluation provides detailed technical information on the human health, environmental and value assessments of creosote, pentachlorophenol, chromated copper arsenate and ammoniacal copper zinc arsenate. Though the PRVD is a consultation document, consultation has already taken place on the science evaluation and risk assessment component of these re-evaluations.--Document.