Dimethyl methylphosphonate

Dimethyl methylphosphonate, organophosphorus chemical compound

CIB&RC CLEARANCE · NDPS CLEARANCE

HSN 2931 41 00 (Dimethyl methylphosphonate) is subject to registration and import permit requirements from 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) rules apply concurrently under Chapter VII-A of the NDPS Rules, 1985, and the tariff line is subject to ITC (HS) Appendix-II controls administered by the Directorate General of Foreign Trade (DGFT) with mandatory Chapter 29 qualifiers required by the Central Board of Indirect Taxes and Customs (CBIC) at the bill of entry.

What this is

HSN code

2931 41 00

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
Confirm whether dimethyl methylphosphonate is listed in the Schedule to the Insecticides Act, 1968. If listed, obtain registration and an import permit from the secretariat of the Central Insecticides Board and Registration Committee before shipment, and note that the places of import are restricted to those permitted under Rule 45 of the Insecticides Rules, 1971.
Insecticides Act, 1968 · Rule 45 of the Insecticides Rules, 1971
2
If the substance is classified as an NDPS substance, import for medical and scientific purposes requires an import certificate obtained under Rule 53 of the NDPS Rules, 1985. Imports outside that category are governed by Appendix-I of the ITC (HS) Schedule per ITC (HS) policy condition 2 to Chapter 29.
Chapter VII-A of the NDPS Rules, 1985 · Rule 53 of the NDPS Rules, 1985 · ITC (HS) policy condition 2 to Chapter 29
3
File the bill of entry with mandatory additional qualifiers for Chapter 29 commodities as stipulated in Paragraphs 4.1 and 4.2 of CBIC Circular 23/2023-Cus dated 30-09-2023, effective 15 October 2023. Additionally, verify whether the consignment qualifies as a specified hazardous substance exceeding threshold quantities, triggering a mandatory 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 treating ITC (HS) Appendix-II compliance as the only threshold check and overlooking the parallel CIB&RC permit requirement where the substance appears in the Insecticides Act Schedule — the two controls are independent, and a consignment arriving with an NDPS import certificate but without a CIB&RC permit will be detained at the restricted import port. Confirm Schedule-listing status with CIB&RC before the purchase order is placed, not at the bill-of-entry stage, where correction attracts demurrage and potential confiscation.

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Frequently asked

Does HSN 2931 41 00 require BIS certification?

No, dimethyl methylphosphonate is not within the BIS Quality Control Order regime; no BIS QCO covers this organo-inorganic compound. Import is governed by the Central Insecticides Board and Registration Committee under the Insecticides Act, 1968, with concurrent NDPS Rules controls and ITC (HS) Appendix-II policy conditions administered by DGFT.

Which ports are permitted for import of insecticides under Rule 45 of the Insecticides Rules, 1971?

Rule 45 of the Insecticides Rules, 1971 restricts import of scheduled insecticides to notified ports only; the current list of permitted ports should be confirmed with CIB&RC before dispatch, as routing to a non-notified port renders the consignment liable to seizure.

When does the Public Liability Insurance requirement apply to this consignment?

The insurance obligation under the Public Liability Insurance Act, 1991 is triggered when the consignment involves a specified hazardous substance exceeding the threshold quantities prescribed in S.O. 227(E) dated 24-03-1992; the owner must take out the required policy before import clearance.

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