Tributyltin compounds

Tributyltin compounds, organotin chemicals

CIB&RC CLEARANCE · NDPS CLEARANCE

HSN 2931 20 00 (Tributyltin compounds) is subject to Central Insecticides Board and Registration Committee (CIB&RC) registration and import permit under the Insecticides Act, 1968 and Rule 45 of the Insecticides Rules, 1971, where the substance figures in the Schedule to that Act. Narcotic Drugs and Psychotropic Substances (NDPS) conditions under Chapter VII-A of the NDPS Rules, 1985 and Chemical Weapons Convention (CWC) policy conditions under Appendix II to Schedule I of the ITC (HS) policy administered by the Directorate General of Foreign Trade (DGFT) apply as additional overlay requirements. Mandatory Chapter 29 qualifiers in import declarations are required per CBIC Circular 23/2023-Cus dated 30-09-2023.

What this is

HSN code

2931 20 00

Chapter

29 · Organic chemicals

Primary regulator

CIB&RC · Insecticides Act, 1968; 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
Confirm whether the specific tributyltin compound figures in the Schedule to the Insecticides Act, 1968; if so, obtain registration and an import permit from the secretariat of CIB&RC before shipment. Import of scheduled insecticides is permitted only through ports specified under Rule 45 of the Insecticides Rules, 1971.
Insecticides Act, 1968 · Rule 45 of the Insecticides Rules, 1971
2
Where the compound additionally meets the NDPS threshold, obtain an import certificate under Rule 53 of the NDPS Rules, 1985 for medical or scientific purposes per Chapter VII-A; all other NDPS-category imports are governed by Appendix I to the ITC (HS) Schedule under ITC (HS) policy condition 2 to Chapter 29.
Chapter VII-A and Rule 53 of the NDPS Rules, 1985 · ITC (HS) policy condition 2 to Chapter 29
3
File the bill of entry with the mandatory additional qualifiers for Chapter 29 commodities as stipulated in paragraphs 4.1 and 4.2 of CBIC Circular 23/2023-Cus, effective 15 October 2023. Where import quantity of specified hazardous substances exceeds prescribed thresholds, 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 that CIB&RC registration alone resolves all import conditions. Tributyltin compounds sit at the intersection of three independent regulatory tracks — the Insecticides Act schedule, the NDPS Rules, and the CWC-derived ITC (HS) Appendix II restrictions — each of which is assessed separately at the bill of entry. Failure to obtain the NDPS import certificate under Rule 53, where the substance is scheduled, results in consignment detention and potential prosecution independent of any CIB&RC clearance already in hand.

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Frequently asked

Does HSN 2931 20 00 require BIS certification?

No. No BIS Quality Control Order covers tributyltin compounds or other organo-inorganic chemicals under this tariff line. Import is governed by CIB&RC registration and permit under the Insecticides Act, 1968, with NDPS and CWC policy overlays administered by DGFT under the ITC (HS) policy.

Are all tributyltin compounds subject to CIB&RC registration, or only certain grades?

CIB&RC registration and import permit are required only where the specific compound figures in the Schedule to the Insecticides Act, 1968; importers must verify the Schedule listing before the purchase order is placed, as unscheduled organotin compounds at this CTI are not subject to CIB&RC permit requirements.

What happens if the import quantity of a hazardous tributyltin substance exceeds the prescribed threshold?

The importer must obtain a Public Liability Insurance policy under the provisions of the PLI Act, 1991, as detailed in S.O. 227(E) dated 24-03-1992 issued by the Ministry of Environment and Forests; failure to carry this insurance at the bill-of-entry stage is an independent statutory violation.

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