HS Code 3825

Chemical Residuals, Municipal Waste and Sewage Sludge

HS code 3825 covers residual products of chemical industries, municipal waste, and sewage sludge containing heavy metals or organic pollutants for disposal.

4-digit Section VIBulk Hazmat 9

HS Code 3825 — Chemical Residuals, Municipal Waste and Sewage Sludge

This code covers residual waste products from chemical industries that are not specifically categorised elsewhere. It includes municipal waste, sewage sludge, and clinical residues from medical treatments. These materials are generally destined for disposal or specialized recovery rather than standard commercial use.

What's included

  • Municipal waste
  • Sewage sludge
  • Clinical waste
  • Waste organic solvents
  • Waste of industrial alkaline batteries

What's excluded

  • Slag and ash from iron or steel → use 2618 (Metallurgical residues are classified in Section VI by mineral type.)
  • Waste oils containing petroleum → use 2710 (Waste oils predominantly containing petroleum follow fuel classifications.)

Common examples

  • Red mud from alumina production
  • Mixed municipal household waste
  • Biological sewage sludge
  • Spent sulphuric acid waste

Frequently asked questions

Does 3825 cover recyclable plastic waste?

No, plastic waste intended for recycling is generally classified under heading 3915.

Trade & shipping notes

  • Typical duty range: 0% - 6.5%
  • Documentation: Movement documents for transboundary shipments of hazardous waste are mandatory under the Basel Convention.
  • Typical shipping mode: Bulk
  • Top exporters: Germany, United States, Netherlands
  • Top importers: China, India, Belgium

Key takeaway

Primarily handles industrial and municipal residues; subject to heavy environmental regulation and the Basel Convention.

Related HS codes

Tired of HS code lookups?

CargoMode extracts HS codes directly from commercial invoices, packing lists, and CMRs — no manual lookup, no transcription errors.