Regulation calendar
The dates that move ships and money.
EU ETS, FuelEU Maritime, IMO and ECA milestones. Every date has an official source and a verified date. Nothing is added without both.
Timeline
Ordered by date.
Verified 17 Oct 2026. Status is set against the date this page was built.
- 1 May 2025passed
Mediterranean Sea SOx Emission Control Area in force (0.10% m/m fuel sulphur)
Covered by the ECA Zone Checker.
International Maritime Organization · MARPOL Annex VI · official source ↗
- 1 Jul 2026passed
IMO MASS Code: non-mandatory Code takes effect for governments that apply it
Non-mandatory. Mandatory adoption targeted by 1 July 2030; entry into force 1 January 2032.
IMO · Resolution MSC.595(111) · official source ↗
- 30 Sept 2026passed
EU ETS (shipping): surrender allowances for 70% of 2025 emissions
Phase-in: 40% of 2024 emissions, 70% of 2025, 100% of 2026 emissions onward.
European Commission · EMSA · official source ↗
- 30 Nov 2026upcoming
IMO Net-Zero Framework: MEPC 85 opens (30 Nov – 3 Dec 2026)
Not adopted. Adoption was deferred after the October 2025 extraordinary session.
International Maritime Organization · official source ↗
- 4 Dec 2026upcoming
IMO: resumed Second Extraordinary MEPC session (subject to MEPC 85)
IMO press briefing: resumption scheduled for 4 December 2026, subject to confirmation by MEPC 85.
International Maritime Organization · official source ↗
- 31 Jan 2027upcoming
FuelEU Maritime: ship-specific FuelEU report due to the verifier
Annual cycle: the same deadline applies each verification period.
European Commission · Regulation (EU) 2023/1805, Art. 15(3) · official source ↗
- 30 Jun 2027upcoming
FuelEU Maritime: penalties paid and Document of Compliance issued
Compliance balance is checked as at 1 June; penalties are due by 30 June of the verification period.
European Commission · national administrations · official source ↗
- 30 Sept 2027upcoming
EU ETS (shipping): surrender allowances for 100% of 2026 emissions
From 1 January 2026 the scope also covers methane and nitrous oxide.
European Commission · EMSA · official source ↗
Dates are planning aids. Confirm deadlines with your flag state, verifier or the official text before acting. We do not offer compliance advice.
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