Compost procurement ordinances and reporting for local government
Some counties and cities in Washington must adopt a Compost Procurement Ordinance (CPO) and submit an annual report on their compost procurement activities as required by the Organics Management Laws. CPOs are a way to build compost markets as organics collection programs expand under the Organics Management Laws. The information below covers the details on CPOs, including why they are necessary and how to complete and submit a CPO report.
Compost procurement ordinances
Compost Procurement Ordinances (CPOs) are a tool for cities and counties to look for opportunities to buy compost and compost products and use these products in their projects.
Cities and counties can use compost in many ways, including:
- Landscaping projects
- Adding to soil before and after construction
- On hillsides or other locations to prevent erosion
- To filter stormwater runoff for pollutants
- To help plants grow
- On road projects to improve the stability and longevity of roadways
Where the law applies:
- Cities and counties with 25,000 residents or more.
- Cities and counties with less than 25,000 residents, not including towns, that have taken action to provide residential organic material collection. Action includes any of the following:
- A city offers their own organics collection program.
- A city or county with a contract that offers organic materials collection.
- A city or county's Solid Waste Management Plan (SWMP) or a local ordinance directs the UTC-franchised hauler to provide organics collection.
Cities and counties needed to adopt a CPO by Jan. 1, 2023. Although past the deadline, you can still upload current CPOs to the Box Portal. Within the Box website, there are examples of CPOs and other CPO resources.
If you have not adopted a CPO yet, consult the resources and examples in the Box website or reach out to us for assistance.
Cities and counties who grow to more than 25,000 residents or take action to provide organic materials collection have one year to adopt a CPO.
Where the law does not apply
While the following jurisdictions are not required to adopt a CPO, they can adopt one voluntarily.
- Towns
- Cities and counties with less than 25,000 residents where residential organics collection is not offered.
- Cities with less than 25,000 residents where the city has taken no action to provide organics collection. This includes cities with organics collection provided by the UTC-franchised hauler(s) under a requirement set by the county, i.e., where the city defaults to the county SWMP.

Compost procurement reporting
Every city or county that adopts a CPO must complete an annual report with their previous years’ activities. The report is available and is submitted online through Secure Access Washington (SAW). You must have a SAW account to access the CPO reporting portal. Reports are due annually by March 31 for the previous years’ data. For example, reports for 2025 are due on March 31, 2026.
Report to us:
- Total tons of organic material diverted from landfills and collected:
- By all curbside programs you directly provide or contract with a hauler to provide.
- At drop-off sites you operate or contract with a third-party to operate.
- By residential curbside programs you require the UTC franchised hauler(s) to provide in your jurisdiction.
- If cubic yards are available instead of tons, use conversion formulas in our General Measurement Standards and Reporting Guidelines.
- The facility or facilities used for processing this organic material. This is the facility that processed the organic material into compost, biogas, or another product. The report has a list of compost facilities in Washington to choose from. You can add a facility if it's not already on the list. Please don’t add transfer stations, landfills, or any other facility that did not process the organic materials into a product (such as compost).
- The volume and cost of compost purchased by the city, county, or contractors.
- Only report compost products that were purchased. If compost was donated or otherwise not purchased, do not report it.
- Only report the cost of the compost. Do not include sales tax, delivery fees, or other costs.
- Report the volume of compost in cubic yards. If you have the amount in tons, the report will automatically convert to cubic yards. We use the standard conversion of 1,100 pounds per cubic yard of compost.
- Only report the yearly totals for the volume and cost of compost purchased.
- If pure compost was not purchased (for example if you purchased soil blended with compost), then report the quantities and costs based on the percentage of compost in the blended product. For example, if you bought 10 cubic yards of soil blended with 25% compost for $100, then you would report 2.5 cubic yards of compost that cost $25 dollars. Cities and counties that enter into collective purchasing agreements should only report the volume and cost of the compost they purchased under those agreements for use by their jurisdiction.
- The source or sources of the compost purchased. This is the facility that created the compost. There will be a list of compost facilities to choose from. There will also be the option to add a facility if it's not already on the list. Please do not add retail locations, nurseries, home improvement stores or any other location that did not create the compost, to your report.
- If bagged product was purchased, look for the facility name on the bag where the compost was produced.
- Ask retailers where their compost comes from, although they may not share. Do not report the names of retail yards – only facilities. Leave this question blank if you cannot find the facility information.
Frequently asked questions
Compost Procurement Ordinance Q&A
CPO Report Q&A
Resources
- If you are unsure if your jurisdiction is required to have a CPO and therefore required to submit an annual CPO report, see our organic management laws local government requirements workbook.
- CPO Report Demonstration (YouTube)
- CPO Reporting Walkthrough (Pub 24-07-044)
- CPO and Reporting Quick Guide (Pub 24-07-023)
- CPO and Reporting Focus Sheet (Pub 22-07-026)
- Visit the BOX platform for resources, including examples of compost procurement ordinances.
- Sign up for Organics Management email updates. Enter your email, choose Solid Waste Management, then Organic Materials.
Contact information
Michelle Andrews
Organics specialist
michelle.andrews@ecy.wa.gov
360-628-7374
Organics management team
organics@ecy.wa.gov
For CPO adoption information
Leatta Dahlhoff
DES Contracts & Procurement Division
leatta.dahlhoff@des.wa.gov
360-407-8108