Key facts
- HS code
- 3825.20
- Covers
- Sewage sludge
- Edition
- HS2022
- Duty rates
- Set by each country’s tariff
Summary
HS code 3825.20 covers sewage sludge. It sits in heading 38.25 (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) in chapter 38 (miscellaneous chemical products). Other goods of heading 38.25 are classified under 3825.10 (municipal waste), 3825.30 (clinical waste), 3825.41 (waste organic solvents, halogenated), 3825.49 (waste organic solvents, other) or 4 others.
What this code covers
HS code 3825.20 covers sewage sludge.
The legal text of the subheading is “Sewage sludge”, in HS2022.
What it doesn’t cover
Other goods of heading 38.25 are classified under 3825.10 (municipal waste), 3825.30 (clinical waste), 3825.41 (waste organic solvents, halogenated), 3825.49 (waste organic solvents, other) or 4 others.
- 3825.10Municipal waste
- 3825.30Clinical waste
- 3825.41Waste organic solvents: Halogenated
- 3825.49Waste organic solvents: Other
- 3825.50Wastes of metal pickling liquors, hydraulic fluids, brake fluids and anti-freeze fluids
- 3825.61Other wastes from chemical or allied industries: Mainly containing organic constituents
- 3825.69Other wastes from chemical or allied industries: Other
- 3825.90Other
How it is structured
3825.20 is a six-digit subheading. Its first two digits, 38, are the chapter; the first four, 3825, are heading 38.25; the last two, 20, identify the subheading within the heading.
Countries add their own digits after these six for their national tariff lines.
- Chapter 38
- Miscellaneous chemical products
- Subheading 3825.20
- Sewage sludge
In other countries
No national tariff lines under 3825.20 are live on border.bot yet. Tariffs built on the Harmonized System (HS2022) use 3825.20 at six digits and add their own digits after it.
Frequently asked questions
What does HS code 3825.20 cover?
HS code 3825.20 covers sewage sludge.
Which heading and chapter is HS code 3825.20 in?
HS code 3825.20 is in heading 38.25 (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) in chapter 38 (miscellaneous chemical products).
Where are goods of heading 38.25 classified when 3825.20 doesn’t fit?
Other goods of heading 38.25 are classified under 3825.10 (municipal waste), 3825.30 (clinical waste), 3825.41 (waste organic solvents, halogenated), 3825.49 (waste organic solvents, other) or 4 others.
Sources and updates
The Harmonized System legal text comes from border.bot release 1 (edition HS 2022), imported from a file, and has been live since 13 October 2026.
This page was last updated on 13 October 2026.
Guidance from published tariff data, not a binding ruling. For a decision customs must follow, apply to the destination’s customs authority for a binding tariff ruling.