Lloyds Registry

Whilst these Interim Guidelines (MEPC.1/Circ.917) are not mandatory, they will be considered by flag Administrations and their Recognized Organizations in the acceptance of carriage of biofuel blends.

The Interim Guidance states the maximum blend ratio (by volume) of biofuel and MARPOL Annex I cargoes (petroleum derived oils) permitted to be carried by a “bunker ship” has increased from 25% to 30% biofuels, provided that:

- The “bunker ship” is an oil tanker, as defined in Regulation 1.5 of MARPOL Annex I, that is certified under MARPOL Annex I to carry, transport and deliver fuel oil for use by ships.

- All residues or tank washings have been discharged ashore unless the oil discharge monitoring equipment is approved for the biofuel blend(s) being shipped.

If the above requirements are met, the International Oil Pollution Prevention Certificate does not need to be modified.

https://www.lr.org/en/knowledge/class-news/20-25/