2004 saw major changes in the CCA pressure-treating industry. New EPA Use regulations for CCA-treated products became effective January 1, 2004.
The story behind the new regulation is long and complicated. To summarize, the EPA regulations were the result of the major CCA chemical manufacturers making a voluntary request to EPA for a label change on the accepted uses for CCA. The impetus behind this request are consumer lawsuits by those claiming to have developed health problems as a result of the use of CCA-treated wood for decks and playground equipment. Although science does not back these claims, the cost of litigation has become extremely expensive and the chemical companies have asked for the label change in an attempt to limit their potential liability for these claims.
Refer to the EPA’s Use Categories for further explanation of the approved uses for CCA-treated products.