The incentives should help balance the higher cost of using these fuels during the early stages of shipping’s energy transition, according to a joint submission to the IMO last month.“ Investment Certainty for Cleaner Marine FuelsLong-term certainty and predictability will be needed to encourage those investments and ensure cleaner marine fuels become increasingly available, they said.“ But certainty over demand alone will not be enough to encourage the early transition. “The early transition including the initial uptake and production of ZNZs is not just governed by certainty on demand,” the submission said. They therefore want any proposals addressing concerns over the NZF to maintain a clear energy transition pathway and certainty over expected demand for ZNZs.