2,3,3,3-Tetrafluoropropene (HFO-1234yf), 1,3,3,3-tetrafluoropropene (HFO-1234ze) and (Z)-1,1,1,4,4,4-hexafluoro-2-butene (HFO-1336mzz)

Hydrofluoroolefins (HFO-1234yf, HFO-1234ze, HFO-1336mzz)

DGFT CLEARANCE · CBIC CLEARANCE

HSN 2903 51 00 (HFO-1234yf, HFO-1234ze and HFO-1336mzz) is classified as Restricted under the ITC (HS) 2022 import policy administered by the Directorate General of Foreign Trade (DGFT), with import permitted only under an Import Authorisation backed by a recommendation from the Ozone Cell, Ministry of Environment, Forest and Climate Change (MoEF&CC), per policy condition no. 05 of Chapter 29. Mandatory Chapter 29 chemical qualifiers in the import declaration are additionally required under Central Board of Indirect Taxes and Customs (CBIC) Circular 23/2023-Cus dated 30-09-2023.

What this is

HSN code

2903 51 00

Chapter

29 · Organic chemicals

Primary regulator

DGFT · ITC (HS) Restricted import policy, Chapter 29, policy condition no. 05

Customs documentation

Import Authorisation from DGFT
Ozone Cell recommendation from MoEF&CC
Chapter 29 qualifiers from CBIC

Compliance steps

1
Obtain an Import Authorisation from the Directorate General of Foreign Trade supported by a recommendation from the Ozone Cell, MoEF&CC, before filing the bill of entry. Import without this authorisation constitutes a Restricted-policy breach under ITC (HS) 2022 Schedule I, policy condition no. 05 of Chapter 29.
DGFT Notification 59/2015-2020 dated 09-03-2022 · ITC (HS) 2022 Schedule I, policy condition no. 05, Chapter 29
2
Declare the mandatory additional chemical qualifiers in the import declaration as stipulated in Para 4.1 and 4.2 of CBIC Circular 23/2023-Cus for commodities under Chapter 29, effective 15 October 2023. Non-declaration or mis-declaration of these qualifiers is a separate customs contravention independent of the DGFT Import Authorisation requirement.
CBIC Circular 23/2023-Cus dated 30-09-2023, Para 4.1 and 4.2

A word of counsel

The most common error on this tariff line is conflating the DGFT Import Authorisation with the Ozone Cell recommendation: the two are sequential, not interchangeable. The Ozone Cell recommendation must be secured first from MoEF&CC and then presented to DGFT as the basis for the Import Authorisation; arriving at the bill-of-entry stage with an authorisation application pending — rather than an issued authorisation — renders the consignment liable to detention and demurrage while the Restricted-import status is resolved.

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Frequently asked

Does HSN 2903 51 00 require BIS certification?

No, hydrofluoroolefins under this tariff line are not covered by any BIS Quality Control Order. Import is governed by the Directorate General of Foreign Trade under ITC (HS) 2022 Schedule I policy condition no. 05 of Chapter 29, requiring an Import Authorisation backed by an Ozone Cell, MoEF&CC recommendation.

Are the Chapter 29 chemical qualifiers required for every shipment of HFOs under this CTI?

Yes. CBIC Circular 23/2023-Cus mandates the additional qualifiers in import declarations for all Chapter 29 commodities effective 15 October 2023; the requirement applies per shipment at the bill-of-entry stage, regardless of the DGFT Import Authorisation status.

Does the Ozone Cell recommendation need to be renewed for each Import Authorisation?

The regulatory record does not specify a renewal cycle, but the Import Authorisation and its underpinning Ozone Cell recommendation must both be current and valid at the time of filing the bill of entry; an expired authorisation converts the consignment to an unauthorised Restricted-import, attracting detention and re-export or confiscation.

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