On January 1, 2021, following Brexit, the EU regulation (Regulation (EU) 2015/757 on the monitoring, reporting, and verification of carbon dioxide emissions from maritime transport) ceased to apply to ships calling at UK ports. As a result, the UK has established its own regulations regarding the monitoring, reporting, and verification of carbon dioxide emissions in maritime operations.
These regulations apply to commercial vessels exceeding 5,000 gross tons (GT) calling at UK ports. Voyage information between EU and UK ports is reported within the EU MRV regulation to avoid duplicate reporting. However, certain activities are exempted from reporting, including bunkering, replenishment of supplies, crew changes, entry or docking solely for the purpose of ship repair, as well as situations involving refuge, search and rescue operations, and transit between vessels outside the port due to distress or emergency.
All shipping companies operating vessels falling under the scope of these regulations are required to monitor and report port call information, including date and time of arrival and departure, emission factors, CO2 emissions, distance travelled, time spent at sea, cargo carried, and transportation work. These reports should be submitted in accordance with the on a per-voyage and annual basis.