Annual Reports on TWW disposal outreach activities

2023 report

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 current report was issued in June 2023, reviewing the second year of the TWW outreach. The inaugural Annual Report was published in June 2022. Each 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 for those user groups disposing TWW.

The reports have been submitted to the California Department of Toxic Substances Control (DTSC) and are available to the public. Use the following links to download the reports: