Singapore informs bunker suppliers and operators of the new requirement

The Maritime and Port Authority of Singapore on 16 October 2023 issued a circular informing licensed bunker suppliers and operators in Singapore's Port of the new requirement to include a Proof of Sustainability (POS) from an approved scheme with the Bunker Delivery Note when supplying biofuels to vessels.

Refer to PMC 21 of 2022, which encourages providing ISCC-certified biofuel within the Port of Singapore.

The 80th session of the International Maritime Organization's Marine Environment Protection Committee approved interim guidance for using biofuels, effective from October 1, 2023, as per MEPC.1/Circ.905:

Interim guidance on use of biofuels under MARPOL Annex VI
The IMO released the MEPC.1/Circ.905, Interim guidance on the use of biofuels under regulations 26, 27, and 28 of MARPOL Annex VI (DCS and CII).

Starting October 1, 2023, MPA-licensed bunker suppliers must provide a POS or equivalent documentation along with the Bunker Delivery Note upon request.

Bunker suppliers must also send a copy of this documentation to MPA for random inspections.

This notice is temporary until an international method for calculating Emission Conversion Factors is developed.

For local emission goals, refer to IPCC 2006 Guidelines.

To calculate CO2 Emission Conversion Factors for international shipping, follow the methodology in MEPC.1/Circ.905.


For more information, please see the document below (available only to subscribers):


Issuance of a Proof of Sustainability with the Bunker Delivery Note for Bio-Fuel Deliveries to Ships Engaged in International Shipping in the Port of Singapore