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Maritime compliance, explained from the regulations

Plain-English references on FuelEU Maritime, EU ETS, CII, EU MRV and the IMO Net-Zero Framework. Every coefficient is cited to its source instrument and recomputed every time this site is updated.

6
Regulations
38
References
171
Coefficients cited

Coefficient tables come from the compliance-data package, cited to instrument and valid-from date · worked examples are recomputed against the compliance engine every time this site is updatedLast updated 2026-10-21

FUELEU

FuelEU Maritime

GHG-intensity targets, Annex II fuel factors, pooling and the penalty formula under Regulation (EU) 2023/1805. · Reg (EU) 2023/1805

3Articles
EU-ETS

EU ETS Maritime

Allowance surrender for shipping under Directive 2003/87/EC: scope, phase-in and the cost of an EUA. · Directive 2003/87/EC

2Articles
UK-ETS

UK ETS Maritime

Allowance surrender for UK domestic shipping from 1 July 2026 under SI 2026/392: scope, in-port emissions and the first compliance period. · SI 2026/392

1Articles
CII

IMO CII

Carbon Intensity Indicator reference lines, reduction factors and the A–E rating boundaries from MEPC.353(78) and MEPC.354(78). · MEPC.353(78) · MEPC.354(78)

2Articles
EU-MRV

EU MRV

Monitoring, reporting and verification of ship CO₂ under Regulation (EU) 2015/757 and THETIS-MRV. · Reg (EU) 2015/757

2Articles
IMO-NZF

IMO Net-Zero Framework

The global fuel standard and pricing mechanism under MARPOL Annex VI. · MARPOL Annex VI

1Articles

Carbonlogy platform

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The worked examples on these pages are computed by the same engine that powers the platform — per ship, per voyage, every day.

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