Green Waste is unprocessed or processed vegetative material that contains any of the following or a mixture thereof: stems, leaves, culls, discarded fruits and vegetables, grass clippings, weeds, yard trimmings, wood, vines, hulls, bark, branches, logs and stumps, home garden/field/vineyard/grove/orchard residues, duff, mulch, and other miscellaneous plant materials. Green waste also includes compost, unless the material is composted in accordance with CalRecycle’s requirements for composting, which ensures complete pathogen kill and eliminates pest risk.
Invasive and destructive pests can persist in green waste. For this reason, movement of this vegetative material may be restricted. California's Green Waste Program allows materials that could spread pests to be moved by mitigating the likelihood of pest dissemination.