Parts and accessories

Parts and accessories of water meters and liquid-flow instruments

BIS QCO APPLICABLE · ISI MARK SCHEME · IS 2373 · CDSCO OVERLAY · MOHFW OVERLAY

HSN 9026 90 00 (parts and accessories of water meters and liquid-flow measuring instruments) is covered by a Bureau of Indian Standards Quality Control Order. Conformity to IS 2373 (bulk-type water meters and accessories) and IS 779 (domestic cold-water meters and accessories) is mandatory under the ISI Mark Scheme with effect from 05 March 2024, by virtue of the Water Meters and Accessories Quality Control Order, 2023. A separate customs-clearance overlay applies for any parts additionally listed as medical devices under the Central Drugs Standard Control Organisation registration regime.

What this is

HSN code

9026 90 00

Chapter

90 · Optical, photographic, measuring, checking, precision, medical or surgical instruments

BIS QCO

Applicable · ISI Mark Scheme · CM/L required

Indian Standard

IS 2373 · effective 05-03-2024

Applicable Partner Government Agencies

BISBIS·Bureau of Indian Standards

CDSCOCDSCO·Central Drugs Standard Control Organisation

MOHFWMOHFW·Ministry of Health and Family Welfare

Compliance steps

1
Source only from a Bureau of Indian Standards CM/L-licensed manufacturer holding a current licence against IS 2373 (bulk-type accessories) or IS 779 (domestic-type accessories), as applicable to the consignment. Verify the CM/L number, licensed product scope, and manufacturing facility on the BIS online register before placing the purchase order.
Water Meters and Accessories Quality Control Order, 2023 · S.O. 1142(E) dated 05-03-2024 · Scheme-I of Schedule-II to the BIS (Conformity Assessment) Regulations, 2018
2
Ensure each article bears the ISI mark and the supplier's CM/L number per Scheme-I of Schedule-II to the BIS (Conformity Assessment) Regulations, 2018. The standard mark must appear on the part or accessory itself; marking on outer packaging alone does not satisfy the statutory requirement.
Scheme-I of Schedule-II to the BIS (Conformity Assessment) Regulations, 2018 · Water Meters and Accessories Quality Control Order, 2023
3
Apply the correct Indian Standard to each product line: IS 2373:1981 governs bulk-type water meter accessories; IS 779:1994 governs domestic cold-water meter accessories with effect from 07-09-2024. The CM/L licence must specify the standard matching the accessory type being imported.
IS 2373:1981 · IS 779:1994 · S.O. 1142(E) dated 05-03-2024
4
If the importer is classified as a small enterprise under clauses (h) and (m) of the MSMED Act, 2006, the IS 779 obligation came into force on 07-12-2024; for micro enterprises, on 07-03-2025. Maintain documentary evidence of the enterprise classification on file to support the applicable enforcement date.
Water Meters and Accessories Quality Control Order, 2023 · S.O. 1142(E) dated 05-03-2024 · Clauses (h) and (m) of the Micro, Small and Medium Enterprises Development Act, 2006
5
If the parts or accessories also appear on the list of regulated medical devices notified under G.S.R. 102(E) dated 11-02-2020, obtain Central Drugs Standard Control Organisation registration before import. Quote the CDSCO registration number on the bill of entry alongside the BIS CM/L number.
G.S.R. 102(E) dated 11-02-2020 issued by the Ministry of Health and Family Welfare · BIS Act, 2016 · Customs Act, 1962

A word of counsel

The single most common error on this tariff line is treating the entire product category as a single homogeneous obligation — importing accessories against a CM/L licensed only for IS 2373 (bulk type) when the consignment contains domestic-type accessories that require IS 779:1994 certification. The two standards are not interchangeable, the licensed scope is standard-specific, and customs detention follows a scope mismatch as readily as it follows an absent licence. Verify that the CM/L covers the precise standard — IS 2373 or IS 779 — corresponding to every product line in the shipment before the purchase order is placed.

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Frequently asked

Does HSN 9026 90 00 require BIS certification?

Yes. Parts and accessories of water meters must conform to IS 2373 (bulk type) or IS 779 (domestic type) and bear the ISI mark under a CM/L licence from the Bureau of Indian Standards, with effect from 05 March 2024 under the Water Meters and Accessories Quality Control Order, 2023.

Do the IS 2373 and IS 779 obligations apply simultaneously or are they mutually exclusive?

They are mutually exclusive by product type — IS 2373:1981 applies to bulk-type water meter accessories, and IS 779:1994 applies to domestic cold-water meter accessories. The importer must hold, or source from a supplier holding, a CM/L licence against the specific standard matching the imported product.

Are small and micro enterprises subject to the same enforcement dates as larger importers?

No. For small enterprises, the IS 779 obligation came into force on 07-12-2024; for micro enterprises, on 07-03-2025. Both categories must maintain documentary proof of their MSME classification to substantiate the applicable effective date at customs.

Does a single CM/L licence cover accessories for both bulk-type and domestic-type water meters?

No. A CM/L licence is standard-specific; accessories within the IS 2373 scope and accessories within the IS 779 scope require separate licences. Parts outside the licensed standard and manufacturing facility are not covered, and importation of such parts triggers detention.

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