A1 Organics stopped accepting compostable packaging and serviceware because compostability certification generally reflects laboratory conditions, and much of that material did not break down in real field composting conditions on commercial timelines. In Denver, certified compostable cups, clamshells, and cutlery go in the trash.

CMA stands for the Compost Manufacturing Alliance, which certifies compostable products based on how they perform in real commercial composting facilities rather than laboratory conditions. In Denver, 3-gallon CMA-certified compostable bags are the only permitted liner for organics collection.

The top contaminants in Denver organics are plastic bags used as liners, certified "compostable" serviceware, paper products, produce stickers, and glove fragments. Every one of them is preventable through signage placement, container placement, and training rather than capital spending.

Seven steps get a Denver property compliant: confirm coverage, calculate capacity in gallons, coordinate a City-licensed hauler, install containers and bilingual signage, train staff and educate occupants, build a Waste Diversion Plan, and open a records file.

URCO's composting requirement centers on multifamily properties with 8 or more units, food waste producers, and hotels. Offices and other non-residential buildings generally carry recycling obligations rather than a composting mandate, though a building with a food service operation inside it changes the analysis.

Denver takes an education-first approach to URCO enforcement. The typical path is an inspection or complaint, followed by a notice of violation identifying the deficiency, followed by a cure period of about 30 days. A citation under Denver Municipal Code §48-47 issues only if the condition persists.

URCO requires covered Denver properties to maintain records showing their recycling and composting program is real and operating. That means service documentation, capacity figures in gallons, education materials, contamination follow-up, and, for self-haulers, disposal documentation retained for one year.

URCO provides limited exemption paths. The main one is de minimis volume: a premises generating less than 64 gallons of trash per month, or less than 48 gallons of organic materials per month, may qualify. Other paths involve inadequate hauling availability and approved on-site processing. Most covered properties do not qualify.

URCO defines service capacity in gallons, not pounds. Weekly organics capacity equals container volume multiplied by collection frequency, and it must be sufficient that material does not overflow between pickups. Weight is a useful operating metric but is not the compliance measure under the ordinance.

URCO enforcement in Denver begins September 1, 2026. New premises generally must comply within 30 days of license issuance or taking possession. After a notice of violation, responsible parties typically get about 30 days to cure before a citation issues under Denver Municipal Code §48-47.

A Waste Diversion Plan is the written document showing how a covered Denver property meets URCO's recycling and composting requirements. Denver has not published an official form or template, which means the safest approach is a superset document broad enough to satisfy any reasonable interpretation of the rule.

A1 Organics, which processes most Denver commercial organics, accepts food scraps and yard and plant trimmings only. The sole permitted liner is a 3-gallon compostable bag certified by the Compost Manufacturing Alliance. No paper, no packaging, no compostable serviceware, no plastic, glass, or metal.

Denver Municipal Code §48-47 sets URCO fines at $150 for a first citation, $500 for a second, and $999 for a third and each subsequent citation. Under §1-13, each day a violation continues counts as a separate offense. Denver typically issues a notice of violation with a cure period before citing.

URCO is Denver's Universal Recycling and Composting Ordinance. It requires apartment buildings with 8 or more units, food service businesses, and hotels to provide recycling and composting service alongside trash. It came from the voter-approved Waste No More initiative, and enforcement begins September 1, 2026.