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SB 343 Material Characterization Study

SB 343 (Allen) requires CalRecycle to conduct periodic characterization studies of material types and forms that are collected, sorted, sold, or transferred by solid waste facilities. This list provides stakeholders and interested parties with periodic updates including publishing of findings, public comment periods, upcoming studies, and other material and waste characterization related activities. 

If you have questions regarding the SB 343 material characterization study or waste characterization studies, please send your questions to

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The following item(s) must be corrected in order to proceed:

    If you have questions about this program, please contact the "SB 343 Material Characterization Study" staff at