Parts of instantaneous or storage water heaters (domestic type)

Parts of domestic instantaneous or storage water heaters

BIS QCO APPLICABLE · ISI MARK SCHEME · IS 12933 · PESO OVERLAY

HSN 8419 90 10 (parts of domestic instantaneous or storage water heaters) is covered by a Bureau of Indian Standards Quality Control Order. Conformity to IS 12933 (Parts 1 and 2):2003, IS 16544:2016, and IS 16542:2016 is mandatory under the ISI Mark Scheme with effect from 14 April 2025, by virtue of S.O. 4485(E). Petroleum and Explosives Safety Organisation approval requirements apply as a separate overlay for pressure-vessel components within the consignment.

What this is

HSN code

8419 90 10

Chapter

84 · Nuclear reactors, boilers, machinery and mechanical appliances; parts thereof

BIS QCO

Applicable · ISI Mark Scheme · CM/L required

Indian Standard

IS 12933 · effective 14-04-2025

Applicable Partner Government Agencies

BISBIS·Bureau of Indian Standards

PESOPESO·Petroleum and Explosives Safety Organisation

Procedural directions for customs clearance are issued by: Central Board of Indirect Taxes and Customs.

Compliance steps

1
Source only from a Bureau of Indian Standards CM/L-licensed manufacturer holding a current licence against the applicable Indian Standard: IS 12933 (Parts 1 and 2):2003 for solar flat-plate collectors, IS 16544:2016 for all-glass evacuated tube systems, or IS 16542:2016 for storage water tanks of all-glass evacuated tube systems. Verify the CM/L number, product scope, and licensed facility on the BIS online register before placing the purchase order.
S.O. 4485(E) dated 08-10-2024 · BIS (Conformity Assessment) Regulations, 2018 · Scheme-I of Schedule-II
2
Ensure each part bears the ISI mark and the supplier's CM/L number in accordance with Scheme-I of Schedule-II of the BIS (Conformity Assessment) Regulations, 2018. Marking must appear on the part itself; packaging-only marking does not satisfy the requirement.
Scheme-I of Schedule-II of the BIS (Conformity Assessment) Regulations, 2018 · S.O. 4485(E) dated 08-10-2024
3
Identify at the purchase-order stage which standard governs each line item in the consignment: flat-plate collector parts → IS 12933, evacuated-tube system parts → IS 16544:2016, evacuated-tube storage tank parts → IS 16542:2016. Mixed consignments require a CM/L against each applicable standard; a single licence does not span all three product classes.
S.O. 4485(E) dated 08-10-2024 · IS 12933 (Parts 1 and 2):2003 · IS 16544:2016 · IS 16542:2016
4
Where the consignment includes pressure vessels or cylinders for gas storage, apply for Petroleum and Explosives Safety Organisation approval via the PESO online system before the expected arrival date. Standard PESO physical-inspection requirements apply; the COVID-era exemption under CBIC Instruction 12/2021-Cus was limited to medical-oxygen cylinders during the pandemic and is not a general ongoing carve-out.
CBIC Instruction 12/2021-Cus dated 25-05-2021 · Gas Cylinders Rules, 2016
5
Quote the supplier's BIS CM/L number (one per applicable IS) and, where applicable, the PESO approval reference on the bill of entry. Customs verifies the CM/L against the BIS register in real time; an absent, expired, or standard-mismatched licence triggers consignment detention.
S.O. 4485(E) dated 08-10-2024 · BIS Act, 2016 · Customs Act, 1962

A word of counsel

The most frequent error on this tariff line is treating the three Indian Standards as interchangeable and presenting a single CM/L at the port when the consignment spans parts from more than one solar water heating technology. IS 12933, IS 16544:2016, and IS 16542:2016 are each standard-specific; a CM/L against IS 12933 alone does not cover evacuated-tube system components, and customs officers examining the bill of entry against the BIS register will detect the scope mismatch, resulting in detention and potential re-export of the non-covered line items.

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Frequently asked

Does HSN 8419 90 10 require BIS certification?

Yes. Parts of domestic solar water heating systems under this tariff line must conform to IS 12933 (Parts 1 and 2):2003, IS 16544:2016, or IS 16542:2016 as applicable, under the ISI Mark Scheme with effect from 14 April 2025, pursuant to S.O. 4485(E).

Which Indian Standard applies to which type of solar water heater part?

IS 12933 (Parts 1 and 2):2003 governs solar flat-plate collectors; IS 16544:2016 covers all-glass evacuated tube solar water heating systems; IS 16542:2016 applies to storage water tanks for all-glass evacuated tube systems. Each part must be covered by a CM/L against the specific standard governing its technology class.

Does the PESO approval requirement under the Gas Cylinders Rules, 2016 apply to all consignments under this HSN?

No. PESO approval is relevant only where the consignment includes pressure vessels or gas-storage cylinders. The COVID-era online clearance relaxation under CBIC Instruction 12/2021-Cus applied exclusively to medical-oxygen cylinders during the pandemic and does not constitute a standing exemption.

Does a single CM/L licence cover parts from all three solar water heating technology classes?

No. A CM/L is issued against a specific Indian Standard and a specific manufacturing facility; a licence against IS 12933 does not extend to evacuated-tube components under IS 16544:2016 or IS 16542:2016, and each standard requires a separate licence verification at customs.

Last verified against gazette notifications: 2026-05-18. Source: BIS / PESO / CBIC / Indian Customs CUSDATA.