Ports handling roughly half of global container traffic agreed to a single certification standard for marine green fuels — one set of documentation for a bunker of green methanol or ammonia, recognised identically in Singapore, Rotterdam, Jebel Ali or Los Angeles. Shipping executives have spent years arguing that fragmented standards, more than fuel prices, froze investment; that excuse now expires.
The standard's teeth are commercial rather than regulatory: certified vessels gain priority berthing and harmonised port-fee rebates, quantifiable advantages that fleet planners can enter into spreadsheets today. Fuel producers gain something scarcer — a bankable specification against which to finance production capacity.
Holdout ports face an uncomfortable dynamic, as alliance members intend to route green corridors among themselves first. The lesson, one port authority chief said, echoes containerisation itself: in shipping, standards are destiny.