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Updated Aug 27, 2025

Since January 1, 2022, cities and counties in California have been required by SB 1383 to procure a minimum amount of products made from recycled organic waste each year. Cities and counties can meet the requirement by procuring products for their own use or to give away. They can also meet this requirement through agreements with direct service providers to use the products on behalf of the jurisdiction. Recycled organic waste products that can satisfy the procurement requirements are compost and mulch, as well as renewable natural gas and electricity produced from biomass.

To be counted toward a jurisdiction’s SB 1383 procurement target, compost and mulch must:

  • be produced at a permitted composting facility (not including chip and grind facilities),
  • be produced from materials diverted from landfill, and
  • meet state limits on pathogens, inert contaminants, and heavy metals

In addition, as of January 1, 2025, per AB 2346 the following products can count toward procurement:

  • Vermicompost
  • Community compost and compost from small operations (total amount of feedstock and compost onsite at any one time does not exceed 100 cubic yards and 750 square feet)
  • Mushroom compost. “Mushroom compost” means the composted growing substrate that remains after a crop has been harvested to completion
  • Mulch produced from tree trimming operations conducted by the jurisdiction or a service provider operating under contract to the jurisdiction when applied to landscape areas owned or managed by the jurisdiction or given away to residents
  • Edible food recovered in compliance with SB 1383 from commercial food generators.

Below is a list of products that do NOT count toward procurement targets:

  • Mulch produced at chipping and grinding operations as defined in 14 CCR § 17852
  • Virgin materials (including all bark mulch and playground fiber)
  • Digestate - uncomposted
  • Biosolids/sewage sludge - uncomposted
  • Manure - uncomposted
  • Tires and other recycled non-organic materials

To support Alameda County jurisdictions affected by procurement requirements, StopWaste worked with composters, commercial suppliers, and retailers to develop a list of sources that offer SB 1383-compliant materials for procurement. Product names and availability change over time; the accuracy of this list is not guaranteed. Please contact vendors directly to confirm availability of SB 1383 compliant material before ordering.

If you have questions about this list, or are a vendor and would like to update your information, please email Kelly Schoonmaker at kschoonmaker@stopwaste.org

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