Trimethylene triniframine

Trimethylene trinitramide, other amine-function compounds

CIB&RC CLEARANCE · NDPS CLEARANCE

HSN 2921 29 20 (Trimethylene trinitramide) is subject to Central Insecticides Board and Registration Committee (CIB&RC) registration and import permit under the Insecticides Act, 1968, where the substance figures in the Schedule to that Act. Narcotic Drugs and Psychotropic Substances (NDPS) import-certificate requirements under Rule 53 of the NDPS Rules, 1985, and Chemical Weapons Convention (CWC) National Authority controls under the ITC (HS) Schedule I policy conditions apply as concurrent overlays, with Directorate General of Foreign Trade (DGFT) and Central Board of Indirect Taxes and Customs (CBIC) administering the policy framework.

What this is

HSN code

2921 29 20

Chapter

29 · Organic chemicals

Primary regulator

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

Customs documentation

Registration and import permit from CIB&RC
Import certificate from NDPS
Chapter 29 mandatory 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
Where the substance falls within the Schedule to the Insecticides Act, 1968, obtain registration and an import permit from the Secretariat of the Central Insecticides Board and Registration Committee before filing the bill of entry. Route the consignment only through ports specified under Rule 45 of the Insecticides Rules, 1971; import at an unspecified place is not permitted.
Insecticides Act, 1968 · Rule 45 of the Insecticides Rules, 1971
2
Where the substance is a Narcotic Drug or Psychotropic Substance, obtain an import certificate under Rule 53 of the NDPS Rules, 1985 for medical and scientific purposes as provided in Chapter VII-A of those Rules. Imports falling outside that category are governed by Appendix I to the ITC (HS) Schedule per ITC (HS) policy condition 2 to Chapter 29.
Rule 53 of the NDPS Rules, 1985 · ITC (HS) policy condition 2 to Chapter 29
3
Ensure the import declaration includes all mandatory additional qualifiers for Chapter 29 commodities as stipulated in Paragraphs 4.1 and 4.2 of CBIC Circular 23/2023-Cus dated 30-09-2023, effective from 15-10-2023. Where the consignment involves nitrogen mustards or CWC Schedule I(Cat 1A/1B) substances, confirm the exporting country is a State Party to the CWC and that National Authority permission has been obtained per Appendix II to ITC (HS) Schedule I.
CBIC Circular 23/2023-Cus dated 30-09-2023 · Appendix II to Schedule I (Cat 1A and Cat 1B) of ITC (HS) policy

A word of counsel

The critical trap on this tariff line is its multi-regime overlap: the CIB&RC pesticide track, the NDPS track, and the CWC national-authority track are each independently triggered depending on the precise chemical identity and end-use of the substance imported. Importers who obtain only the CIB&RC permit but do not evaluate whether the substance also carries an NDPS or CWC Schedule I designation expose the consignment to detention and seizure under whichever parallel regime has not been satisfied. Additionally, where hazardous substance quantities exceed the threshold under S.O. 227(E) dated 24-03-1992, a public liability insurance policy must be in force before clearance.

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Frequently asked

Does HSN 2921 29 20 require BIS certification?

No; no BIS Quality Control Order covers amine-function compounds under this tariff line. Import is governed by the Central Insecticides Board and Registration Committee under the Insecticides Act, 1968, with concurrent NDPS Rules, 1985 and CWC National Authority controls under the ITC (HS) policy framework.

Are all ports open for import of insecticides under this tariff line?

No. The places at which insecticides may be imported are restricted under Rule 45 of the Insecticides Rules, 1971; the importer must confirm the intended port of entry is a notified place before shipment.

Does the CWC restriction apply to every substance classified under HSN 2921 29 20?

No; the CWC Schedule I(Cat 1A) restriction on nitrogen mustards and the Cat 1B restriction on specific chlorinated ethylamines apply only to substances matching those chemical descriptions in Appendix II to Schedule I of the ITC (HS) policy, and import is then permitted solely from State Parties to the CWC subject to National Authority conditions.

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