3825.20.00.00
Sewage sludge
Classification path
- Residual products of the chemical or allied industries, not elsewhere specified or included; municipal waste; sewage sludge; other wastes specified in note 6 to this chapter
- Sewage sludge
Rates of duty
- General (MFN)
- Free
- Column 2Cuba, North Korea, Russia, Belarus
- Free
- Unit of quantity
- kg
Related lines in heading 3825
- 3825.10.01.00Municipal wasteFree
- 3825.30.00.00Clinical wasteFree
- 3825.41.00.00Waste organic solvents / HalogenatedFree
- 3825.49.00.00Waste organic solvents / OtherFree
- 3825.50.00.00Wastes of metal-pickling liquors, hydraulic fluids, brake fluids and anti-freeze fluidsFree
- 3825.61.00.00Mainly containing organic constituentsFree
- 3825.69.00.00OtherFree
- 3825.90.01.00OtherFree
About heading 3825
Residual products of the chemical or allied industries, not elsewhere specified or included; municipal waste; sewage sludge; other wastes specified in note 6 to this chapter
Heading 3825 covers residual products of the chemical or allied industries that are not specified elsewhere, plus municipal waste, sewage sludge and the other wastes listed in note 6 to chapter 38. It is split first by the type of waste stream: municipal, sewage, clinical, waste organic solvents, and specific liquid wastes such as pickling liquors and brake fluids. A final group covers other chemical industry wastes, divided by whether they mainly contain organic constituents, with a basket line for the remainder.
Full guide to heading 3825Products in this heading
- Household and commercial garbage collected by a municipality
- Dewatered sewage sludge from a treatment plant
- Used halogenated solvents such as spent degreasing solvents
- Surgical and other clinical waste from hospitals and clinics
- Spent brake fluid and used anti-freeze fluid
- Waste metal-pickling liquors from a plating line
- Spent hydraulic fluid collected from machinery
- Filter cake and other organic chemical process waste
Frequently asked questions
What is the HTS code for sewage sludge?
Sewage sludge is classified under 3825.20.00.00. The general (MFN) rate for that code is Free.
What is the duty on clinical waste?
Clinical waste falls under 3825.30.00.00. Its general (MFN) rate is Free.
How do I classify waste organic solvents?
Halogenated waste organic solvents go in 3825.41.00.00 and other waste organic solvents go in 3825.49.00.00. Both codes carry a general (MFN) rate of Free.
Source: USITC Harmonized Tariff Schedule, retrieved October 21, 2026.