Phosphorous oxychloride

Phosphorus oxychloride, a non-metal halide oxide (POCl3)

BIS QCO APPLICABLE · ISI MARK SCHEME · IS 11657

HSN 2812 12 00 (phosphorus oxychloride) is covered by a Bureau of Indian Standards Quality Control Order. Conformity to IS 11657:1986 (reaffirmed 2015) is mandatory under the ISI Mark Scheme with effect from 16 December 2020, by virtue of the Phosphorous Oxychloride (Quality Control) Order, 2020. Chemical Weapons Convention post-import notification to multiple authorities and mandatory additional qualifier declarations under Central Board of Indirect Taxes and Customs Circular 23/2023-CUS apply as separate customs-clearance overlays.

What this is

HSN code

2812 12 00

Chapter

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

BIS QCO

Applicable · ISI Mark Scheme · CM/L required

Indian Standard

IS 11657 · effective 16-12-2020

Applicable Partner Government Agencies

BISBIS·Bureau of Indian Standards

Procedural directions for customs clearance are issued by: Central Board of Indirect Taxes and Customs, Directorate General of Foreign Trade.

Compliance steps

1
Source only from a Bureau of Indian Standards CM/L-licensed manufacturer holding a current licence against IS 11657:1986 (reaffirmed 2015) for technical-grade phosphorus oxychloride. Verify the supplier's CM/L number, licensed product scope, and manufacturing facility on the BIS online register before placing the purchase order.
Phosphorous Oxychloride (Quality Control) Order, 2020 · S.O. 1899(E) dated 16-06-2020
2
Ensure each consignment bears the ISI standard mark and the supplier's CM/L number, applied under Scheme-I of Schedule-II to the BIS (Conformity Assessment) Regulations, 2018. Marking must appear on the product container or label, not on outer packaging alone.
Scheme-I of Schedule-II to the BIS (Conformity Assessment) Regulations, 2018 · Phosphorous Oxychloride (Quality Control) Order, 2020 · S.O. 1899(E)
3
File mandatory additional qualifier declarations in the import bill of entry as stipulated in paragraphs 4.1 and 4.2 of CBIC Circular 23/2023-CUS, applicable to Chapter 28 commodities with effect from 15 October 2023. Absent or incorrect qualifiers trigger consignment detention at the gateway port.
CBIC Circular 23/2023-CUS dated 30-09-2023
4
Submit post-import notification within 30 days of import to the National Authority Chemical Weapons Convention, the Cabinet Secretariat, the Ministry of External Affairs (D&ISA), the Department of Chemicals and Petrochemicals, and the Directorate General of Foreign Trade. Furnish a copy of the bill of entry to the Directorate General of Foreign Trade within the same 30-day window.
Appendix-II of ITC HS Import Policy · Policy Condition 2 of Chapter 28 · CWC Act and Rules
5
Quote the supplier's BIS CM/L number on the bill of entry alongside the Chapter 28 mandatory qualifiers. Customs cross-verifies the CM/L in real time against the BIS register; an absent, expired, or scope-mismatched CM/L triggers detention, demurrage, and potential re-export or confiscation.
Phosphorous Oxychloride (Quality Control) Order, 2020 · S.O. 1899(E) · BIS Act, 2016 · Customs Act, 1962

A word of counsel

The single most common error on this tariff line is treating the 30-day CWC post-import notification as an afterthought and failing to pre-coordinate the five-authority notification chain before the consignment arrives — a procedural gap that, while not triggering port detention on its own, constitutes a statutory violation under the CWC Act and Rules and exposes the importer to monetary penalty and criminal liability. A second compounding error is confusing the gazette publication date (16-06-2020) with the enforcement date (16-12-2020): IS 11657:1986 reaffirmed 2015 applies, not a later version, and suppliers offering product marked to a different IS version must be rejected before shipment rather than at the gate.

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Frequently asked

Does HSN 2812 12 00 require BIS certification?

Yes. Conformity to IS 11657:1986 (reaffirmed 2015) is mandatory under the ISI Mark Scheme from 16 December 2020 by virtue of the Phosphorous Oxychloride (Quality Control) Order, 2020; import is permitted only from manufacturers holding a current BIS CM/L licence covering the relevant facility and product scope.

Is the Chemical Weapons Convention notification required for every import consignment?

Yes. Phosphorus oxychloride is a Category 1C CWC chemical; within 30 days of each import, the importer must notify the National Authority Chemical Weapons Convention, the Cabinet Secretariat, the Ministry of External Affairs (D&ISA), the Department of Chemicals and Petrochemicals, and the Directorate General of Foreign Trade, and submit a copy of the bill of entry to the Directorate General of Foreign Trade.

What are the mandatory additional qualifiers required under CBIC Circular 23/2023-CUS?

Paragraphs 4.1 and 4.2 of CBIC Circular 23/2023-CUS, effective 15 October 2023, require specific commodity qualifiers in the import declaration for Chapter 28 goods; the exact qualifier fields are prescribed in the circular and must be completed on the bill of entry before out-of-charge can be granted.

Does a single CM/L licence cover phosphorus oxychloride production across all facilities of the same manufacturer?

No. A CM/L licence is facility-specific; product manufactured at a plant not covered by the licence is outside scope, and customs will detain a consignment where the declared manufacturing facility does not match the licensed address on the BIS register.

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