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HomeHSNChapter 73HSN 7307 29 00

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Malleable cast iron threaded pipe fittings (elbows, tees, unions, bends, reducers)

BIS QCO APPLICABLE · ISI MARK SCHEME · IS 1879 · SIMS OVERLAY

HSN 7307 29 00 (malleable cast iron threaded pipe fittings) is covered by a Bureau of Indian Standards Quality Control Order. Conformity to IS 1879:2010 is mandatory under the ISI Mark Scheme with effect from 1 September 2024, by virtue of the Cast Iron Products (Quality Control) Order, 2023. Steel Import Monitoring System registration administered by the Directorate General of Foreign Trade applies as a separate customs-clearance overlay.

What this is
HSN code
7307 29 00
Chapter
73 · Articles of iron or steel
BIS QCO
Applicable · ISI Mark Scheme · CM/L required
Indian Standard
IS 1879:2010 · effective 01-09-2024
Applicable Partner Government Agencies
BISBIS·Bureau of Indian Standards
SIMSSIMS·Steel Import Monitoring System

Procedural directions for customs clearance are issued by: Directorate General of Foreign Trade.

Compliance steps
  1. 1
    Source only from a Bureau of Indian Standards CM/L-licensed manufacturer holding a current licence against IS 1879:2010 for malleable cast iron pipe fittings. Verify the supplier's CM/L number, licensed product scope (fitting type, pressure rating, size range), and manufacturing facility address on the BIS online register before placing the purchase order.
    Cast Iron Products (Quality Control) Order, 2023 · S.O. 2287(E) dated 13-06-2024
  2. 2
    Ensure every fitting bears the ISI mark and the supplier's CM/L number under Scheme-I of Schedule-II to the BIS (Conformity Assessment) Regulations, 2018. The mark must appear on the product itself and not only on the packaging.
    Scheme-I of Schedule-II to the BIS (Conformity Assessment) Regulations, 2018 · Cast Iron Products (Quality Control) Order, 2023
  3. 3
    Register the consignment on the Steel Import Monitoring System portal not earlier than 60 days before the expected arrival date. The registration fee is ₹500 and the automatic registration number is valid for 75 days from issue; it must remain within validity on the date of arrival.
    DGFT Notification 33/2015-20 dated 28-09-2020 · DGFT Notification 28/2023 dated 28-08-2023
  4. 4
    Quote both the supplier's BIS CM/L number and the SIMS registration number on the bill of entry. Customs verifies the CM/L in real time against the BIS register and the SIMS registration against the DGFT portal; either being absent, expired, or scope-mismatched triggers consignment detention.
    ITC HS policy condition 2 of Chapter 73 · BIS Act, 2016 · Customs Act, 1962
  5. 5
    If the consignment is a re-import for packaging purposes only, or an SEZ-to-DTA movement (with or without value addition), document the SIMS exemption basis. The BIS QCO obligation under IS 1879:2010 is not waived by either SIMS carve-out — the ISI-marked product requirement continues to apply.
    DGFT policy circular 38/2015-20 dated 19-01-2022 · DGFT Notification 19/2015-20 dated 07-07-2022
A word of counsel

The single most consequential oversight on this tariff line is failing to account for the phased enforcement schedule: the BIS QCO obligation under IS 1879:2010 took effect on 1 September 2024 for large enterprises, 1 December 2024 for small enterprises, and 1 March 2025 for micro enterprises. Importers who procured from suppliers that had not yet obtained a CM/L licence for their enterprise tier — relying on the phase-in window as a permanent exemption — face detention and potential re-export of unmarked consignments once their applicable enforcement date has passed.

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Frequently asked
Does HSN 7307 29 00 require BIS certification?
Yes. Malleable cast iron pipe fittings under this tariff line must conform to IS 1879:2010 under the ISI Mark Scheme; import is permitted only from manufacturers holding a current BIS CM/L licence, with enforcement effective from 1 September 2024 for large enterprises.
Is SIMS registration required separately from BIS QCO compliance?
Yes. Steel Import Monitoring System registration is administered by the Directorate General of Foreign Trade and is independent of the BIS QCO. The fee is ₹500, registration is valid for 75 days, and the importer may apply no earlier than 60 days before the expected arrival date.
Do the phased enforcement dates affect the BIS CM/L requirement for small and micro enterprises?
Yes. Under the Cast Iron Products (Quality Control) Order, 2023, the obligation took effect 1 September 2024 for large enterprises, 1 December 2024 for small enterprises, and 1 March 2025 for micro enterprises; from each respective date, the CM/L requirement is absolute for that enterprise category.
Does a single CM/L licence cover all fitting types and sizes from the same manufacturer?
No. The CM/L is scope-specific by fitting type, size range, pressure rating, and manufacturing facility; fittings outside the licensed scope or from an unlicensed plant are not covered and will be detained at customs.
Last verified against gazette notifications: 2026-05-18. Source: BIS / SIMS / DGFT / Indian Customs CUSDATA.
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