Environmental Compliance
EEXI/EPL, CII and Corrective Action Plan, SEEMP Part II/III, IMO Net-Zero Framework, GHG Rating, alternative fuels, EU ETS/FuelEU Maritime, Ballast Water Management Convention, Biofouling Management, Underwater Radiated Noise, Onboard Carbon Capture and Storage, Shore Power/Cold Ironing, Wind-Assisted Propulsion Systems, Methanol/Ammonia Bunkering, Just Transition, EU MRV Review, CII Reduction Factors 2027-2030.
Each topic below brings together, in a single place: an operational explanation, the regulatory reference, scope of application, procedure, practical example, what typically goes wrong, common mistakes, what the Port State Control Officer (PSCO) checks, operational tips, a checklist and FAQ — with the regulatory reference verified against the primary source.
EEXI and Engine Power Limitation (EPL)
EEXI applicability follows MARPOL VI/19, 23 and 25 by type, size, propulsion and exemption; it does not cover every ship and IEE verification belongs to the Administration or duly authorized organization.
CII (Carbon Intensity Indicator)
CII applies only to the closed MARPOL VI/28.1 categories from 5,000 GT; a D/E rating requires revised SEEMP Part III with a corrective-action plan submitted for verification, not generic class approval.
SEEMP Part II and Part III
SEEMP Parts I, II and III have distinct scopes; Part III follows CII categories and a rolling three-year plan, with verification/Confirmation rather than generic class approval.
IMO Net-Zero Framework
The IMO Net-Zero Framework remains an unadopted draft: MEPC 84 arranged further work toward MEPC 85 and possible resumption on 4 December 2026, not finalized detailed guidelines.
Environmental Vetting and GHG Rating
RightShip GHG Rating A–E is distinct from Safety Score, inspection age trigger and charterer policies; nomination consequences require a current attributable policy.
Alternative Fuels and Operational Readiness
Readiness starts from the actual fuel approval route: mandatory IGF provisions for natural gas; for other fuels SOLAS II-1/55, applicable interim guidance and flag/RO requirements.
EU ETS and FuelEU Maritime
EU ETS, MRV and FuelEU have distinct scopes: in 2027 ETS adds offshore ships ≥5,000 GT; 400–4,999 remains proposal/review, while FuelEU concerns ships above 5,000 GT.
Ballast Water Management Convention In Depth
MEPC 84 approved draft BWM amendments for possible adoption at MEPC 85, but adopted the 2026 G4 Guidelines through MEPC.409(84): the two statuses remain distinct.
Biofouling Management
The Biofouling Guidelines are voluntary and create no IMO-certified provider: before in-water cleaning, check port/coastal-State rules and assess the service technically.
Underwater Radiated Noise (URN)
MEPC 84 agreed in principle to extend the URN experience-building phase to end-2028; the Revised Guidelines remain voluntary.
Onboard Carbon Capture and Storage (OCCS)
OCCS is an emissions-abatement technology, not a fuel or energy source; CII/EEXI/NZF accounting, testing, survey and certification remain to be established by applicable instruments.
Shore Power and Cold Ironing (Onshore Power Supply)
AFIR and FuelEU OPS concern relevant container/passenger ships above 5,000 GT; at berth use OPS or qualifying zero-emission technology, or document the exact Article 6(5) exception.
Wind-Assisted Propulsion Systems (WAPS)
Rotor sail, wing sail, suction sail or kite: every ton of fuel saved by an auxiliary wind propulsion system is simultaneously a cost saving, a CII improvement, and an avoided compliance cost.
Methanol and Ammonia Bunkering: Infrastructure and Real Cases
Methanol/ammonia bunkering availability is route- and port-specific: verify supplier, transfer mode, approval, technical standard and emergency arrangement directly.
Just Transition and the Social Impact of Decarbonization
Up to 800,000 seafarers could require professional retraining by the mid-2030s under a full-decarbonization scenario: the maritime sector's energy transition is also, and perhaps above all, a question of people.
Review of the EU MRV Framework in Light of the EU ETS
The 2026 EU review produced COM(2026) 616: it is a legislative proposal, while current MRV scope remains the consolidated Regulation 2015/757 until a final act.
CII: 2027-2030 Reduction Factors and New SEEMP Granularity
New Appendix IX fields and 2027–2030 CII factors apply by ship type and scope: transport work does not universally mean cargo ton-miles and Part III follows its rolling three-year plan.
Editorial revision of 9 August 2026 · page fingerprint a09416c6f83e