N-(1-(Dialkyl (≤C10, incl. cycloalkyl) amino))alkylidene (H or ≤C10, incl. cycloalkyl) phosphonamidic fluorides and corresponding alkylated or protonated salts

Phosphonamidic fluoride compounds with nitrogen function

DGFT CLEARANCE · CBIC CLEARANCE

HSN 2929 90 70 covers N-(1-(Dialkyl) amino)alkylidene phosphonamidic fluorides and their alkylated or protonated salts, which correspond to Schedule 1 of the Chemical Weapons Convention and are subject to prior permission from the National Authority, Chemical Weapons Convention (NACWC) under Section 15 of the Chemical Weapons Convention Act, 2000. The Directorate General of Foreign Trade (DGFT) classifies this tariff line as Free under DGFT Notification 44/2025-26, and Central Board of Indirect Taxes and Customs (CBIC) mandatory chemical-qualifier declarations under CBIC Circular 23/2023-Cus apply at the bill-of-entry stage.

What this is

HSN code

2929 90 70

Chapter

29 · Organic chemicals

Primary regulator

DGFT · Chemical Weapons Convention Act, 2000 (Schedule 1 chemical, NACWC permission required)

Customs documentation

NACWC permission from National Authority CWC
Chapter 29 qualifiers from CBIC
Insurance policy from MoEF

Compliance steps

1
Obtain prior permission from the National Authority, Chemical Weapons Convention before shipment of any quantity of this substance. This chemical corresponds to Schedule 1 of the Chemical Weapons Convention and import is permitted only under Section 15 of the Chemical Weapons Convention Act, 2000; absence of NACWC permission renders the consignment liable to confiscation and criminal liability.
Section 15 of the Chemical Weapons Convention Act, 2000 · DGFT Notification 44/2025-26 dated 15-10-2025
2
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, with effect from 15 October 2023. Non-compliance with the declared chemical qualifiers triggers customs examination and potential detention of the consignment.
CBIC Circular 23/2023-Cus dated 30-09-2023
3
Where the imported quantity of this specified hazardous substance exceeds the threshold prescribed under the Public Liability Insurance Act, 1991, the owner must take out an insurance policy before the goods are released. The relevant threshold quantities and insurance requirements are notified under S.O. 227(E) dated 24-03-1992 by the Ministry of Environment and Forests.
Public Liability Insurance Act, 1991 · S.O. 227(E) dated 24-03-1992 (MoEF)

A word of counsel

The most common error on this tariff line is relying on the ITC (HS) 'Free' import status — confirmed under DGFT Notification 44/2025-26 — as sufficient clearance, without separately securing NACWC permission under Section 15 of the Chemical Weapons Convention Act, 2000. The 'Free' policy condition governs only the trade-policy dimension; the CWC Act operates as an independent statutory restriction that is not overridden by the DGFT classification, and a consignment arriving without NACWC permission faces seizure and prosecution regardless of its ITC (HS) status.

Need a regulatory steer on this product?

Speak to a regulatory counsel about your specific HSN, IS, and supplier situation.

Speak to an Expert

Frequently asked

Does HSN 2929 90 70 require BIS certification?

No, no BIS Quality Control Order covers this phosphonamidic fluoride compound. Import is governed by the Chemical Weapons Convention Act, 2000 — which requires prior permission from the National Authority, Chemical Weapons Convention — along with DGFT policy controls and CBIC chemical-qualifier declaration requirements under CBIC Circular 23/2023-Cus.

Does the Finance Bill 2025 change the import status for this tariff line?

Yes. With effect from 1 May 2025, the Finance Bill 2025 introduced tariff changes applicable to this CTI; DGFT Notification 44/2025-26 dated 15 October 2025 simultaneously confirmed the ITC (HS) policy position as Free, though the NACWC permission requirement under the CWC Act, 2000 remains operative independently.

Does the Public Liability Insurance obligation apply to every import of this chemical?

No — the insurance requirement under the Public Liability Insurance Act, 1991 is triggered only when the imported quantity of the specified hazardous substance exceeds the threshold quantities prescribed in S.O. 227(E) dated 24-03-1992; importers below those thresholds are not subject to the mandatory policy requirement.

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