2022 NAICS industry in sector 56 Administrative and Support and Waste Management and Remediation Services
56221 Waste Treatment and Disposal
NAICS 56221 is the US industry code for waste treatment and disposal. It covers establishments primarily engaged in (1) operating waste treatment or disposal facilities (except sewer systems or sewage treatment facilities) or (2) the combined activity of collecting and/or hauling of waste materials within a local area and operating waste treatment or disposal facilities.
Official definition
This industry comprises establishments primarily engaged in (1) operating waste treatment or disposal facilities (except sewer systems or sewage treatment facilities) or (2) the combined activity of collecting and/or hauling of waste materials within a local area and operating waste treatment or disposal facilities. Waste combustors or incinerators (including those that may produce byproducts, such as electricity), solid waste landfills, and compost dumps are included in this industry.
When to use a different code
Census classifies these close-sounding activities somewhere else. Businesses mainly engaged in:
- Collecting, treating, and disposing waste through sewer systems or sewage treatment facilities are classified in Industry 22132, Sewage Treatment Facilities.
- Manufacturing compost are classified in Industry 32531, Fertilizer and Compost Manufacturing.
- Pumping (i.e., cleaning) cesspools, portable toilets, and septic tanks or renting portable toilets are classified in Industry 56299, All Other Waste Management Services.
Codes in 56221
Data last changed November 14, 2026. How this page is built.