Gamma acid

Gamma acid, aminohydroxynaphthalene sulphonic acid

CIB&RC CLEARANCE · NDPS CLEARANCE

HSN 2922 21 40 (Gamma acid) 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 conditions under Chapter VII-A of the NDPS Rules, 1985 apply as a concurrent overlay, alongside Directorate General of Foreign Trade (DGFT) ITC (HS) policy condition 2 of Chapter 29 and mandatory Chapter 29 qualifiers under CBIC Circular 23/2023-Cus.

What this is

HSN code

2922 21 40

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
Verify whether the specific substance falls within the schedule to the Insecticides Act, 1968. If so, obtain registration and an import permit from the secretariat of CIB&RC before filing the bill of entry; note that the places at which insecticides may be imported are restricted under Rule 45 of the Insecticides Rules, 1971.
Insecticides Act, 1968 · Rule 45 of the Insecticides Rules, 1971 · ITC (HS) policy condition 2 of Chapter 29
2
If the substance is an NDPS-scheduled compound, obtain an import certificate under Rule 53 of the NDPS Rules, 1985 for medical or scientific purposes, or comply with Appendix-I to the ITC (HS) Schedule for other permitted categories. Consult the Central Bureau of Narcotics portal (cbn.nic.in) for current procedures.
Chapter VII-A of the NDPS Rules, 1985 · Rule 53 of the NDPS Rules, 1985 · ITC (HS) policy condition 2 of Chapter 29
3
Ensure the bill of entry carries the mandatory additional qualifiers for Chapter 29 commodities in the import declaration as stipulated in paragraphs 4.1 and 4.2 of CBIC Circular 23/2023-Cus, operative with effect from 15 October 2023. Where imports of specified hazardous substances exceed notified quantities, take out an insurance policy under the Public Liability Insurance Act, 1991 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 that because gamma acid is primarily a dye intermediate, neither the CIB&RC nor the NDPS overlay applies. The CIB&RC schedule check and the NDPS schedules must each be run against the specific substance and its concentration independently of its commercial end-use; a consignment cleared as a dye intermediate but carrying a scheduled insecticide or NDPS substance without the requisite permit is liable to seizure and prosecution under the respective Acts, not merely detention pending a corrective filing.

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Frequently asked

Does HSN 2922 21 40 require BIS certification?

No; no BIS Quality Control Order covers aminohydroxynaphthalene sulphonic acids. Import is governed by CIB&RC registration and permit requirements under the Insecticides Act, 1968, with concurrent NDPS Rules, 1985 conditions and DGFT ITC (HS) policy condition 2 of Chapter 29.

Which ports are permitted for import of insecticides under this tariff line?

The places at which insecticides may be imported are restricted under Rule 45 of the Insecticides Rules, 1971; the current notified port list must be confirmed with the CIB&RC secretariat before routing the shipment.

When does the Public Liability Insurance Act, 1991 obligation arise for this HSN?

The insurance requirement under the Public Liability Insurance Act, 1991 is triggered only when imports of specified hazardous substances exceed the quantities notified in S.O. 227(E) dated 24-03-1992; imports below those thresholds are not subject to the PLI Act overlay.

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