Back to California

SB-279 • 2026

Solid waste: compostable materials.

Solid waste: compostable materials.

Enacted

This bill passed the Legislature and reached final enactment based on the latest official action.

Sponsor
McNerney
Last action
2025-10-11
Official status
Chaptered by Secretary of State. Chapter 651, Statutes of 2025.
Effective date
Not listed

Plain English Breakdown

The candidate explanation includes a claim about the Department's ability to further increase limits, which is implied but not directly supported by the provided official source material.

Compostable Materials: Exemptions and Regulations

This law changes the rules for composting by removing square-foot limits on exempted activities, increasing volume allowances for private operations and public agencies, adding large-scale biomass management events as an excluded activity, and raising annual giveaway or sale limits.

What This Bill Does

  • Expands the amount of compostable material that can be handled without a permit from 100 cubic yards to up to 200 cubic yards for private operations and up to 500 cubic yards for public agencies.
  • Removes the square-foot limit on exempted composting activities.
  • Adds large-scale biomass management events at agricultural facilities as an excluded activity.
  • Increases the annual amount of compost that can be given away or sold from 1,000 cubic yards to up to 5,000 cubic yards.

Who It Names or Affects

  • People who handle compostable materials for private operations.
  • Public agencies involved in large-scale biomass management events at agricultural facilities.
  • The Department of Resources Recycling and Recovery, which oversees regulations on composting.

Terms To Know

Compost
Decomposed organic material used as a soil conditioner or fertilizer.
Tier
A level of regulation for composting operations, each with different requirements and restrictions.

Limits and Unknowns

  • The exact limits on the amount of compost that can be given away or sold may change based on future regulations by the Department of Resources Recycling and Recovery.
  • This law does not specify an effective date for when these changes will take place.

Bill History

  1. 2025-10-11 California Legislative Information

    Chaptered by Secretary of State. Chapter 651, Statutes of 2025.

  2. 2025-10-11 California Legislative Information

    Approved by the Governor.

  3. 2025-09-16 California Legislative Information

    Enrolled and presented to the Governor at 3 p.m.

  4. 2025-09-09 California Legislative Information

    Assembly amendments concurred in. (Ayes 40. Noes 0. Page 2712.) Ordered to engrossing and enrolling.

  5. 2025-09-08 California Legislative Information

    In Senate. Concurrence in Assembly amendments pending.

  6. 2025-09-08 California Legislative Information

    Read third time. Passed. (Ayes 79. Noes 0. Page 3000.) Ordered to the Senate.

  7. 2025-09-03 California Legislative Information

    Read second time. Ordered to third reading.

  8. 2025-09-02 California Legislative Information

    Read second time and amended. Ordered to second reading.

  9. 2025-08-29 California Legislative Information

    From committee: Do pass as amended. (Ayes 11. Noes 0.) (August 29).

  10. 2025-08-20 California Legislative Information

    August 20 set for first hearing. Placed on APPR. suspense file.

  11. 2025-07-08 California Legislative Information

    From committee: Do pass and re-refer to Com. on APPR. (Ayes 14. Noes 0.) (July 7). Re-referred to Com. on APPR.

  12. 2025-06-30 California Legislative Information

    From committee with author's amendments. Read second time and amended. Re-referred to Com. on NAT. RES.

  13. 2025-06-05 California Legislative Information

    Referred to Com. on NAT. RES.

  14. 2025-05-29 California Legislative Information

    In Assembly. Read first time. Held at Desk.

  15. 2025-05-29 California Legislative Information

    Read third time. Passed. (Ayes 38. Noes 0. Page 1336.) Ordered to the Assembly.

  16. 2025-05-27 California Legislative Information

    Read second time. Ordered to third reading.

  17. 2025-05-23 California Legislative Information

    Read second time and amended. Ordered to second reading.

  18. 2025-05-23 California Legislative Information

    From committee: Do pass as amended. (Ayes 5. Noes 0. Page 1194.) (May 23).

  19. 2025-05-16 California Legislative Information

    Set for hearing May 23.

  20. 2025-05-12 California Legislative Information

    From committee with author's amendments. Read second time and amended. Re-referred to Com. on APPR.

  21. 2025-04-07 California Legislative Information

    April 7 hearing: Placed on APPR. suspense file.

  22. 2025-03-28 California Legislative Information

    Set for hearing April 7.

  23. 2025-03-20 California Legislative Information

    Read second time and amended. Re-referred to Com. on APPR.

  24. 2025-03-19 California Legislative Information

    From committee: Do pass as amended and re-refer to Com. on APPR. (Ayes 7. Noes 0. Page 421.) (March 19).

  25. 2025-03-07 California Legislative Information

    Set for hearing March 19.

  26. 2025-02-14 California Legislative Information

    Referred to Com. on E.Q.

  27. 2025-02-06 California Legislative Information

    From printer. May be acted upon on or after March 8.

  28. 2025-02-05 California Legislative Information

    Introduced. Read first time. To Com. on RLS. for assignment. To print.

Official Summary Text

SB 279, McNerney.
Solid waste: compostable materials.
Existing law requires the Department of Resources Recycling and Recovery to adopt and revise regulations setting forth minimum standards for composting, in accordance with law. Existing regulations require all compostable materials handling activities to obtain a permit prior to commencing operations and to comply with specified requirements. Existing regulations specify 4 regulatory tiers for composting operations, with different requirements for each tier. The 4 tiers are excluded, enforcement agency notification, registration permit, and full solid waste facility permit.
In the excluded tier, existing regulations specify the “excluded activities” that do not constitute compostable material handing operations or facilities and, therefore, are not subject to permit requirements or other regulatory requirements. One of the excluded activities
is the composting of green material, agricultural material, food material, and vegetative food material, alone or in combination, if the total amount of feedstock and compost onsite at any one time does not exceed 100 cubic yards and 750 square feet.
This bill would expand this excluded activity exemption for composting activities by eliminating the maximum square-foot condition and authorizing a total amount of feedstock and compost onsite at any one time of up to 200 cubic yards, or 500 cubic yards
for a composting activity owned by a public agency, as defined. The bill would also authorize the Department of Resources Recycling and Recovery to further increase those amounts by regulation. The bill would also make the composting of agricultural materials and residues that are from a large-scale biomass management event at an agricultural facility that does not otherwise operate as a solid waste facility an excluded activity, as specified.
Existing regulations prohibit a composting operation from giving away or selling more than 1,000 cubic yards of compost product annually if it is in the excluded tier or if it is an agricultural material
composting operation in the enforcement agency notification tier, its feedstock is both green material and agricultural material, and the operation is located on land zoned for agricultural uses.
This bill would authorize composting activities to give away or sell up to 5,000 cubic yards of compost product annually. The bill would authorize the Department of Resources Recycling and Recovery to increase, by regulation, that amount when the composting is of agricultural materials and residues that are from a large-scale biomass management event at an agricultural facility.

Current Bill Text

Read the full stored bill text
Download Bill PDF