DNV

Decarbonization is a top priority for ship owners. While the EU MRV and IMO DCS have become routine, new regulations such as the EU ETS and FuelEU Maritime present uncharted territory for many. Below is a summary of the key regulations and required actions for 2025:

EU MRV
To comply with EU MRV requirements, ship managers must ensure accurate emissions data and promptly submit their reports for verification by an accredited verifier. Once verified, managers are required to submit the reports to the THETIS-MRV system.

Deadlines in 2025:
Submission (to verifier, DNV): 21 February (in which case DNV guarantees verification before the deadline)
Verification: 31 March.

https://www.dnv.com/news/ghg-regulatory-outlook-for-2025-major-actions-and-deadlines/