Napthelene sulphonic acid

Naphthalene sulphonic acid, sulphonated hydrocarbon derivatives

CIB&RC CLEARANCE · NDPS CLEARANCE

HSN 2904 10 30 (Naphthalene sulphonic acid) is subject to registration and import-permit requirements administered by the Central Insecticides Board and Registration Committee (CIB&RC) under the Insecticides Act, 1968, where the substance figures in the Schedule to that Act. Narcotic Drugs and Psychotropic Substances (NDPS) controls under Chapter VII-A of the NDPS Rules, 1985 and the Directorate General of Foreign Trade (DGFT) ITC (HS) policy condition 2 of Chapter 29 apply as additional overlays, alongside mandatory Chapter 29 declaration qualifiers under CBIC Circular 23/2023-Cus.

What this is

HSN code

2904 10 30

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 it does, obtain registration and an import permit from the Secretariat of the Central Insecticides Board and Registration Committee before filing the bill of entry, and route the consignment only through ports notified 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
Where the substance is an NDPS-scheduled compound, obtain an import certificate under Rule 53 of the NDPS Rules, 1985 for medical and scientific purposes; imports outside that category are governed by Appendix-I to the ITC (HS) Schedule. Details are available at http://cbn.nic.in.
Chapter VII-A and Rule 53 of the NDPS Rules, 1985 · ITC (HS) policy condition 2 of Chapter 29
3
Ensure the import declaration includes the mandatory additional qualifiers for Chapter 29 commodities as stipulated in paragraphs 4.1 and 4.2 of CBIC Circular 23/2023-Cus with effect from 15 October 2023. Where the consignment quantity of a specified hazardous substance exceeds the prescribed threshold, take out a public liability insurance policy under the Public Liability Insurance Act, 1991.
CBIC Circular 23/2023-Cus dated 30-09-2023 · S.O. 227(E) dated 24-03-1992

A word of counsel

The most frequent error on this tariff line is assuming CIB&RC controls are irrelevant because the product is primarily a chemical intermediate rather than a marketed pesticide formulation. The Schedule to the Insecticides Act, 1968 captures active substances and technical grades, not only finished formulations; an importer who skips the schedule-membership check and arrives at port without CIB&RC registration and a port-specific import permit faces consignment detention and potential confiscation under the Insecticides Act, 1968, regardless of any DGFT or CBIC clearances already in order.

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Frequently asked

Does HSN 2904 10 30 require BIS certification?

No, no BIS Quality Control Order covers sulphonated hydrocarbon derivatives under this tariff line. Import is governed by the Central Insecticides Board and Registration Committee under the Insecticides Act, 1968, with NDPS controls and DGFT ITC (HS) policy condition 2 of Chapter 29 applying where the substance meets the relevant criteria.

Are all ports open for import of insecticides under this CTI?

No. Ports at which insecticides may be imported are restricted; importers must verify the permitted entry points under Rule 45 of the Insecticides Rules, 1971 before routing the consignment.

When does the NDPS import-certificate requirement apply to this HSN?

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

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