Didecyldimethylammonium perfluorooctane sulphonate

Didecyldimethylammonium perfluorooctane sulphonate, quaternary ammonium salt

CIB&RC CLEARANCE · NDPS CLEARANCE

HSN 2923 40 00 (Didecyldimethylammonium perfluorooctane sulphonate) 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) Rules, 1985 import-certificate conditions under Chapter VII-A and ITC (HS) policy condition 2 of Chapter 29 apply as overlays, alongside mandatory Chapter 29 additional qualifiers under CBIC Circular 23/2023-Cus.

What this is

HSN code

2923 40 00

Chapter

29 · Organic chemicals

Primary regulator

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

Customs documentation

Registration certificate from CIB&RC
Import permit from CIB&RC
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
Where the substance figures in 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 shipment. Import is also restricted to notified places; confirm the port of entry is permitted under Rule 45 of the Insecticides Rules, 1971.
Insecticides Act, 1968 · Rule 45 of the Insecticides Rules, 1971 · ITC (HS) policy condition 2 to Chapter 29
2
If the substance qualifies as an NDPS substance, obtain an import certificate under Rule 53 of the NDPS Rules, 1985 for medical or scientific purposes per Chapter VII-A of those Rules. Imports outside that category are governed by Appendix-I to the ITC (HS) Schedule.
Chapter VII-A and Rule 53 of the NDPS Rules, 1985 · ITC (HS) policy condition 2 to Chapter 29
3
Ensure mandatory additional qualifiers for Chapter 29 commodities are included in the import declaration as stipulated in Para 4.1 and 4.2 of CBIC Circular 23/2023-Cus with effect from 15 October 2023. Where import quantity of specified hazardous substances exceeds prescribed limits, obtain a Public Liability Insurance policy per 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 assuming the CIB&RC registration alone discharges all import obligations and overlooking the port-of-import restriction under Rule 45 of the Insecticides Rules, 1971. A consignment arriving at a non-notified port — even with a current CIB&RC permit — is liable to detention and seizure under the Insecticides Act, 1968. Confirm the designated import location against the CIB&RC-notified list before the bill of lading is issued.

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Frequently asked

Does HSN 2923 40 00 require BIS certification?

No, no BIS Quality Control Order covers quaternary ammonium salts under this tariff line. Import is governed by the Central Insecticides Board and Registration Committee under the Insecticides Act, 1968, with NDPS Rules, 1985 and ITC (HS) policy condition 2 of Chapter 29 applying as overlays.

Is the NDPS import certificate always required for this HSN, or only in certain cases?

The NDPS import certificate under Rule 53 of the NDPS Rules, 1985 is required only where the specific substance qualifies as an NDPS substance; imports outside the medical and scientific purpose category under Chapter VII-A are instead governed by Appendix-I to the ITC (HS) Schedule.

What triggers the Public Liability Insurance obligation for this tariff line?

The obligation to take out a Public Liability Insurance policy under the provisions referenced in S.O. 227(E) dated 24-03-1992 is triggered when import of specified hazardous substances exceeds the prescribed threshold quantities.

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