Annual Reports on TWW disposal outreach activities

The state of California requires Treated Wood Waste (TWW) to be disposed under mandated Alternative Management Standards, as defined in Assembly Bill 332. The legislation also requires an annual report from the wood preserving industry on education and outreach efforts regarding TWW disposal.

The inaugural Annual Report on TWW disposal was published in June 2022. The 355-page report offers a history of TWW disposal programs in California, the legislative requirements under AB 332, and overview of trends in the wood preserving industry and details on the outreach activities in 2021 and early 2022 for those user groups disposing TWW.

The report has been submitted to the California Department of Toxic Substances Control (DTSC) and is available to the public. Use the following links to download the 2021 report: