While the maritime industry has, in the past few years, been the subject of intense scrutiny for its GHG emissions, most of the regulatory focus has been on the shipping sector.
While this is not unusual given that it is the maritime transport leg of the supply chain that accounts for the bulk of emissions (primarily through its bunker consumption), there are other stakeholders that also contribute to emissions (albeit not of the same magnitude as shipping).
This set of stakeholders includes...
https://www.marineinsight.com/maritime-law/how-port-and-terminal-operators-can-control-emissions/