Stationary engines of cylinder capacity exceeding 50 cc

Stationary compression-ignition diesel engines exceeding 50 cc cylinder capacity

BIS QCO APPLICABLE · ISI MARK SCHEME · IS 10001 · CPCB OVERLAY

HSN 8408 90 10 (stationary engines of cylinder capacity exceeding 50 cc) is covered by a Bureau of Indian Standards Quality Control Order. Conformity to IS 10001 is mandatory under the ISI Mark Scheme with effect from 3 November 2022, by virtue of G.S.R. 804(E). Central Pollution Control Board type-approval, emission norms, and conformance labelling requirements apply as separate customs-clearance overlays.

What this is

HSN code

8408 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 10001 · effective 03-11-2022

Applicable Partner Government Agencies

BISBIS·Bureau of Indian Standards

CPCBCPCB·Central Pollution Control Board

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 10001 for constant-speed compression-ignition diesel engines for general purposes (up to 19 kW). Verify the supplier's CM/L number, licensed product scope, and manufacturing facility on the BIS online register before placing the purchase order.
IS 10001 · G.S.R. 804(E) dated 03-11-2022 · General Note 2 to ITC (HS) Import Policy
2
Ensure each engine bears the ISI mark and the supplier's CM/L number on the product itself, not on packaging alone. Marking must conform to the requirements of Scheme-I of the BIS (Conformity Assessment) Regulations, 2018.
IS 10001 · BIS (Conformity Assessment) Regulations, 2018 · G.S.R. 804(E) dated 03-11-2022
3
Verify CPCB type approval, certificate of conformity of production, and conformance labelling requirements for diesel engines up to 800 kW used in generator sets. Confirm the engine meets applicable emission and noise norms under Serial No. 95 of Schedule-I of the Environment Protection Rules, 1986.
Schedule-I, Sr. No. 95 of the Environment Protection Rules, 1986 · CPCB letter CP-29/10/2022-UPC-I-HO-CPCB-HO-927 dated 26-05-2023 · CBIC letter F.No. 401/67/2022-Cus III dated 26-05-2023
4
Quote the supplier's BIS CM/L number and CPCB type-approval reference on the bill of entry. Customs cross-verifies the CM/L against the BIS register and CPCB credentials against the pollution-control portal; any absent, expired, or scope-mismatched reference triggers consignment detention.
G.S.R. 804(E) dated 03-11-2022 · BIS Act, 2016 · Customs Act, 1962
5
Confirm the consignment does not comprise second-hand diesel generating sets. Import of second-hand capital goods including diesel generating sets is restricted under Para 2.31 of the Foreign Trade Policy.
Para 2.31 of the Foreign Trade Policy · G.S.R. 804(E) dated 03-11-2022

A word of counsel

The most common error on this tariff line is treating the CPCB type-approval and emission-norm certification as the headline obligation while treating IS 10001 compliance as secondary. The statutory trigger for detention is import of a diesel engine without a valid BIS CM/L licence against IS 10001, irrespective of CPCB clearance status. Additionally, the BIS QCO scope under IS 10001 is expressly limited to constant-speed engines up to 19 kW — importers sourcing higher-output engines must separately verify that the CM/L covers the precise rated output of the consignment.

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Frequently asked

Does HSN 8408 90 10 require BIS certification?

Yes. IS 10001 is mandatory under the ISI Mark Scheme with effect from 3 November 2022; import is permitted only from manufacturers holding a current BIS CM/L licence covering the specific engine type and output rating.

Is CPCB type approval required separately from BIS QCO compliance?

Yes. CPCB type approval, certificate of conformity of production, and conformance labelling under Schedule-I, Sr. No. 95 of the Environment Protection Rules, 1986 are independent of the BIS CM/L obligation and must both be satisfied before customs clearance.

Is the BIS QCO under IS 10001 limited to engines of a specific output range?

Yes. The IS 10001 obligation applies to constant-speed compression-ignition diesel engines for general purposes up to 19 kW; engines outside this output range must be assessed separately for applicable standards and notifications.

Does a single CM/L licence cover all engine variants and output ratings from the same manufacturer?

No. The CM/L is scope-specific by engine type, rated output, and manufacturing facility; engine variants or output ratings outside the licensed scope, or from an unlicensed plant, are not covered.

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