Goods specified in Supplementary Note 19 to this Chapter

Sulphonamides and related organic chemicals (supplementary note 19 goods)

CDSCO CLEARANCE · CIB&RC CLEARANCE · +3 OTHER PGAS

HSN 2935 90 40 covers goods specified in Supplementary Note 19 to Chapter 29 and is subject to Central Drugs Standard Control Organisation (CDSCO) registration and the Central Insecticides Board and Registration Committee (CIB&RC) mandatory registration or import-permit regime under Section 9 of the Insecticides Act, 1968. The Ministry of Health and Family Welfare (MOHFW) device-registration conditions under G.S.R. 102(E) dated 11-02-2020 and Narcotic Drugs and Psychotropic Substances (NDPS) policy conditions 2 and 3 of Chapter 29 apply as concurrent overlays. Import is otherwise free under DGFT Notification 44/2025-26 dated 15-10-2025, subject to policy condition 7 of Chapter 29.

What this is

HSN code

2935 90 40

Chapter

29 · Organic chemicals

Primary regulator

CDSCO · Drugs and Cosmetics Act / Medical Devices Rules; CIB&RC · Insecticides Act, 1968 and Insecticides Rules, 1971

Customs documentation

Registration certificate from CDSCO
Registration or import permit from CIB&RC
Chapter 29 mandatory qualifiers from CBIC

Applicable Partner Government Agencies

CDSCOCDSCO·Central Drugs Standard Control Organisation

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

MOHFWMOHFW·Ministry of Health and Family Welfare

MEFCCMEFCC·Ministry of Environment, Forest and Climate Change

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
Determine the regulatory sub-regime that applies to the specific substance being imported: CIB&RC mandatory registration (or, for non-insecticidal use, a CIB&RC import permit) under Section 9 of the Insecticides Act, 1968; CDSCO registration if the substance is a listed medical device under G.S.R. 102(E) dated 11-02-2020; or NDPS policy conditions 2 and 3 if the substance is a narcotic drug or psychotropic substance. The certificate of registration or import permit from CIB&RC specifies the permitted source of import — no diversion to an unlisted source is permissible.
Section 9 of the Insecticides Act, 1968 · Rule 45 of the Insecticides Rules, 1971 · G.S.R. 102(E) dated 11-02-2020 (MOHFW) · ITC (HS) Chapter 29 policy conditions 2, 3 and 7
2
At the bill of entry, upload all mandatory documents in e-Sanchit and include the Chapter 29 additional qualifiers in the import declaration as stipulated in paragraphs 4.1 and 4.2 of CBIC Circular 23/2023-Cus dated 30-09-2023, with effect from 15-10-2023. Where the substance is a hazardous substance imported in quantities exceeding the specified threshold, obtain an insurance policy under the Public Liability Insurance Act, 1991 as required by S.O. 227(E) dated 24-03-1992 issued by the Ministry of Environment, Forest and Climate Change.
CBIC Circular 23/2023-Cus dated 30-09-2023, paras 4.1 and 4.2 · S.O. 227(E) dated 24-03-1992 (MOEF) · DGFT Notification 44/2025-26 dated 15-10-2025
3
If the substance is an ozone-depleting substance, comply with policy conditions 1, 4 and 5 of Chapter 29 and paragraph 8(a) of the General Notes regarding import policy under the Ozone Depleting Substances (Regulation and Control) Rules, 2000. If the goods qualify as hazardous waste, comply with Rules 12 and 13 of the Hazardous Waste (Management and Transboundary Movement) Rules, 2016 and paragraph 8(b) of the General Notes.
Ozone Depleting Substances (Regulation and Control) Rules, 2000 · Hazardous Waste (Management and Transboundary Movement) Rules, 2016, Rules 12 and 13 · ITC (HS) General Notes, paras 8(a) and 8(b)

A word of counsel

The most prevalent error on this tariff line is treating CIB&RC registration as interchangeable with the CIB&RC import permit: registration is required when the chemical is imported for insecticidal use, while a separate import permit is required for non-insecticidal purposes — and the certificate invariably restricts the permissible source of supply. Shipping from an unlisted source voids the registration or permit, exposing the consignment to detention and confiscation under the Insecticides Act, 1968, regardless of whether the CDSCO or NDPS overlay has been satisfied. Confirm the source restriction on the CIB&RC certificate against the bill of lading before cargo is loaded.

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Frequently asked

Does HSN 2935 90 40 require BIS certification?

No; no BIS Quality Control Order covers sulphonamides or the goods under Supplementary Note 19 to Chapter 29. Import is governed by CIB&RC mandatory registration or import permit under the Insecticides Act, 1968, CDSCO registration for listed medical devices under G.S.R. 102(E) dated 11-02-2020, and NDPS policy conditions where narcotic or psychotropic substances are involved.

Are the Chapter 29 additional qualifiers in the import declaration mandatory for this tariff line?

Yes. CBIC Circular 23/2023-Cus dated 30-09-2023 requires mandatory additional qualifiers for import declarations covering commodities under Chapters 28, 29, 32, 39 and CTH 3808, with effect from 15 October 2023; non-compliance at the bill-of-entry stage can result in detention.

What happens if the hazardous-substance import exceeds the quantity threshold under the Public Liability Insurance Act, 1991?

The importer must take out an insurance policy under the Public Liability Insurance Act, 1991 as specified in S.O. 227(E) dated 24-03-1992; absence of this cover at the time of import is treated as a violation of the notified conditions and attracts regulatory action by the Ministry of Environment, Forest and Climate Change.

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