Other

Complex cyanides, other than potassium ferrocyanide

CIB&RC CLEARANCE

HSN 2837 20 90 (complex cyanides, residual) is subject to Central Insecticides Board and Registration Committee (CIB&RC) mandatory registration or import permit under Section 9 of the Insecticides Act, 1968. Central Board of Indirect Taxes and Customs (CBIC) Circular 23/2023-Cus dated 30-09-2023 mandates additional Chapter 28 qualifiers in the import declaration with effect from 15 October 2023. Import of these substances at specified places only is further governed by Rule 45 of the Insecticides Rules, 1971.

What this is

HSN code

2837 20 90

Chapter

28 · Inorganic chemicals; organic or inorganic compounds of precious metals

Primary regulator

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

Customs documentation

Registration certificate from CIB&RC
Import permit from CIB&RC
Chapter 28 qualifiers from CBIC

Applicable Partner Government Agencies

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

Procedural directions for customs clearance are issued by: Central Board of Indirect Taxes and Customs.

Compliance steps

1
Obtain CIB&RC registration under Section 9 of the Insecticides Act, 1968 if the complex cyanide is imported for insecticidal use. Where imported for a non-insecticidal purpose, secure an import permit from the Registration Committee; in both cases, the source of supply must match the source specified on the certificate of registration or the permit.
Section 9 of the Insecticides Act, 1968 · Insecticides Rules, 1971 · CBIC Circular 35/2011-Cus dated 09-08-2011 · CBIC Circular 7/2014-Cus dated 07-03-2014
2
File the bill of entry through one of the places notified for insecticide imports under Rule 45 of the Insecticides Rules, 1971, and include the mandatory additional qualifiers for Chapter 28 commodities in the import declaration as stipulated in Paragraphs 4.1 and 4.2 of CBIC Circular 23/2023-Cus, operative from 15 October 2023.
Rule 45 of the Insecticides Rules, 1971 · CBIC Circular 23/2023-Cus dated 30-09-2023
3
Where the import quantity of specified hazardous substances exceeds the prescribed threshold, take out a public liability insurance policy under the Public Liability Insurance Act, 1991 before clearance.
S.O. 227(E) dated 24-03-1992 issued by the Ministry of Environment and Forests · Public Liability Insurance Act, 1991

A word of counsel

The most common error on this tariff line is importing from a supplier not named on the CIB&RC certificate of registration or import permit. The Registration Committee specifies the source of import as a licence condition; a consignment arriving from an unlisted source is treated as an unregistered import under the Insecticides Act, 1968, exposing the importer to seizure of the consignment and prosecution, irrespective of whether the substance is ultimately used for insecticidal or non-insecticidal purposes.

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Frequently asked

Does HSN 2837 20 90 require BIS certification?

No, complex cyanides under this residual tariff line are not covered by any BIS Quality Control Order. Import is governed by the Central Insecticides Board and Registration Committee under Section 9 of the Insecticides Act, 1968, with CBIC Circular 23/2023-Cus mandatory Chapter 28 qualifier requirements applying at the bill-of-entry stage.

Is a separate import permit needed if the complex cyanide is not used as an insecticide?

Yes. Even for non-insecticidal end-use, the Registration Committee requires an import permit specifying the permitted source; using a source not listed on that permit constitutes a separate contravention under the Insecticides Act, 1968.

What triggers the public liability insurance obligation for this HSN?

The PLI Act, 1991 obligation is triggered when the import quantity of the specified hazardous substance exceeds the threshold prescribed under S.O. 227(E) dated 24-03-1992; the insurance policy must be in force before customs out-of-charge.

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