What Are Denver's Restaurant Composting Requirements Under URCO?
- Ethan Babil
- Aug 16
- 4 min read
Denver restaurants are food waste producers under URCO and must provide on-site composting for staff, contract with a City-licensed hauler, post accepted-materials signage in English and Spanish, size service capacity in gallons, and keep compliance records. Enforcement begins September 1, 2026, with fines starting at $150.
Below is the full operator's version: whether you are covered, what has to be on site, what can actually go in the bin, how to size service, and where kitchens most often get it wrong.
Is my restaurant covered?
If you prepare, serve, or sell food in Denver, assume yes.
URCO's food waste producer category is broad. It covers restaurants, cafes, coffee shops, bars, breweries with kitchens, grocery stores, food halls, ghost kitchens, caterers, commissaries, and licensed food processing and wholesale operations.
The test is whether the operation generates food waste, not what the sign out front says.
What exactly does a covered restaurant have to do?
Five obligations:
Provide organics collection on site. Staff and contractors need a compliant place to put food scraps.
Contract with a licensed hauler. Licensed by the City and County of Denver, specifically. Not licensed generally, not licensed elsewhere.
Post required signage. Container identification plus accepted and prohibited materials, in English and Spanish at minimum, on or adjacent to each container.
Size capacity correctly. URCO measures service capacity in gallons (§2.29). Your organics collection has to handle normal volume without overflow.
Document everything. A Waste Diversion Plan plus service records, education materials, and contamination follow-up.
What can actually go in the compost bin?
This is where most Denver restaurants get burned, so read this part carefully.
Denver's organics stream is processed by A1 Organics, the dominant composter on the Front Range. A1 accepts food scraps and yard and plant trimmings only.
Accepted: fruit and vegetable scraps including trim and peels, meat, fish, bones, dairy and cheese, bread, pasta, rice, grains, coffee grounds, eggshells.
Rejected: paper products of any kind including napkins, paper towels, and pizza boxes, "compostable" serviceware, cups, lids, and takeout containers even certified ones, coffee filters, plastic of any kind including produce stickers and glove fragments, glass, metal, foil.
The only permitted liner is a 3-gallon compostable bag certified by the Compost Manufacturing Alliance (CMA). Standard trash bags contaminate the load.
Yes, the serviceware exclusion surprises people. A1 dropped packaging because certification reflects laboratory conditions, not real field composting conditions, and the material was not breaking down.
Full list: what can go in a Denver compost bin.
How do you size compost service for a restaurant?
In gallons, not pounds.
URCO defines service capacity by volume. Your compliance question is whether the container size multiplied by your pickup frequency exceeds the organics volume you generate between pickups.
A 64-gallon cart collected three times a week is 192 gallons of weekly capacity. The same cart collected once is 64. Frequency is a lever most operators forget they have, and it is often cheaper than upsizing to a container that will not fit in your alley anyway.
Track pounds if you want the operating metric. Do not confuse it with the compliance measure.
What are the back-of-house setup basics?
Put the organics container where the waste is generated, not where there happens to be room. Prep line and dish pit are the two highest-volume points.
Color-code and label every station identically. If the walk-in station and the dish station look different, the contamination rate doubles.
Keep the path from station to dumpster short and obvious. Compliance programs die on the walk.
What are the penalties?
Denver Municipal Code §48-47: $150 first citation, $500 second, $999 third and each subsequent. Under §1-13, each continuing day is a separate offense.
Denver generally issues a notice of violation with a cure period before citing.
Frequently asked questions
Do customers need compost bins in the dining room? The organics obligation centers on staff and contractor access. Customer-facing recycling access is separately addressed. Front-of-house compost stations are optional and workable, but they raise contamination risk without strong picture signage.
Do we need a Waste Diversion Plan? Yes. Denver has not published an official form, so the safest approach is a document broad enough to satisfy any reasonable interpretation.
What if we generate almost no food waste? A de minimis exemption may apply to premises generating less than 48 gallons of organic materials per month. Very few kitchens qualify. Document the volume before relying on it.
Does food donation count? Donating edible surplus to food banks and shelters is a recognized diversion pathway and is worth building into your program.
We just signed a lease. When do we have to comply? New premises generally must comply within 30 days of license issuance or taking possession.
Get your kitchen compliant
Melly's Recycling is a Denver URCO compliance company. We are not a hauler. We build your Waste Diversion Plan, calculate capacity in gallons, produce A1-aligned bilingual signage, train your staff, handle annual reporting, and maintain the documentation file. When you need service, we coordinate licensed Denver haulers through a sealed-bid process so you are not calling around for quotes.
You finish what you started.
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