Other

Other acyclic polyamine compounds, acyclic amine residuals

CIB&RC CLEARANCE · NDPS CLEARANCE

HSN 2921 29 90 (other acyclic polyamines) is subject to Central Insecticides Board and Registration Committee (CIB&RC) registration and import permit under the Insecticides Act, 1968 for any substance listed in that Act's Schedule, with import restricted to ports specified under Rule 45 of the Insecticides Rules, 1971. Narcotic Drugs and Psychotropic Substances (NDPS) controls apply where the substance falls within the NDPS Rules, 1985, and Chemical Weapons Convention (CWC) restrictions govern nitrogen mustards and specified chloroamine precursors under Appendix II to Schedule I of the ITC (HS) policy. Mandatory Chapter 29 additional qualifiers under CBIC Circular 23/2023-Cus apply at the bill of entry from 15 October 2023.

What this is

HSN code

2921 29 90

Chapter

29 · Organic chemicals

Primary regulator

CIB&RC · Insecticides Act, 1968 and Insecticides Rules, 1971

Customs documentation

Registration and permit from CIB&RC
Import certificate from NDPS
Chapter 29 qualifiers from CBIC

Applicable Partner Government Agencies

CIB&RCCIB&RC·Central Insecticides Board and Registration Committee

NDPSNDPS·Narcotics Control Bureau

Procedural directions for customs clearance are issued by: Directorate General of Foreign Trade, Central Board of Indirect Taxes and Customs.

Compliance steps

1
Verify whether the specific acyclic polyamine falls within the Schedule to the Insecticides Act, 1968. If it does, obtain registration and an import permit from the Secretariat of the Central Insecticides Board and Registration Committee, and route the consignment only through ports specified under Rule 45 of the Insecticides Rules, 1971.
Insecticides Act, 1968 · Rule 45 of the Insecticides Rules, 1971
2
Where the substance qualifies as an NDPS substance, obtain an import certificate under Rule 53 of the NDPS Rules, 1985 for medical or scientific purposes, or confirm the import is governed by Appendix I to the ITC (HS) Schedule under policy condition 2 to Chapter 29. Nitrogen mustards require National Authority permission under CWC Appendix II, Schedule I (Cat IA); specified chloroamine precursors under Cat IB require import from CWC State Parties only.
Rule 53 of the NDPS Rules, 1985 · ITC (HS) policy condition 2 to Chapter 29 · Appendix II to Schedule I (Cat IA and Cat IB) of the ITC (HS) policy
3
File mandatory additional qualifiers in the import declaration under CBIC Circular 23/2023-Cus dated 30-09-2023 as stipulated in paragraphs 4.1 and 4.2, effective 15 October 2023. Where the consignment involves specified hazardous substances exceeding prescribed quantities, take out a Public Liability Insurance policy as required under S.O. 227(E) dated 24-03-1992.
CBIC Circular 23/2023-Cus dated 30-09-2023 · S.O. 227(E) dated 24-03-1992

A word of counsel

The most common error on this tariff line is applying a single-regime test when multiple controls may simultaneously activate on the same molecule. A substance may be a CWC-scheduled precursor, an NDPS-listed psychotropic, and a CIB&RC-registered insecticide all at once; each regime operates independently, and satisfying one does not discharge the others. Consignments cleared under a CIB&RC permit but lacking NDPS import certificate or CWC National Authority permission are liable to detention, seizure, and — for CWC Category IA substances — criminal liability under the Chemical Weapons Convention Act.

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Frequently asked

Does HSN 2921 29 90 require BIS certification?

No. No BIS Quality Control Order covers acyclic polyamine compounds under this residual tariff line. Import is governed by the Central Insecticides Board and Registration Committee under the Insecticides Act, 1968, with concurrent NDPS and CWC controls and the CBIC Chapter 29 mandatory-qualifiers overlay.

Which ports are permitted for import of insecticides under this HSN?

Import of substances listed in the Schedule to the Insecticides Act, 1968 is restricted to ports specified under Rule 45 of the Insecticides Rules, 1971; the operative list should be confirmed with the CIB&RC secretariat before shipment.

What happens if a nitrogen mustard under this CTI is imported without National Authority permission?

Nitrogen mustards are restricted under Appendix II to Schedule I (Cat IA) of the ITC (HS) policy and may only be imported with permission from the National Authority under the Chemical Weapons Convention; import without that permission renders the consignment liable to seizure and confiscation under the relevant penal provisions.

Last verified against gazette notifications: 2026-05-16. Source: CIB&RC / NDPS / DGFT / CBIC / Indian Customs CUSDATA.