CII and EEXI Compliance Software for Marine Track Carbon Intensity and Hold Your Rating
Custom CII and EEXI compliance software for UAE operators whose vessels above 5,000 GT carry an annual Carbon Intensity Indicator rating from A to E. Built to take accurate fuel and voyage data, compute the CII rating, track it against the reduction factors that tighten through 2026, and flag where a corrective action plan is needed before a D or E forces one. Designed to sit alongside your onboard and noon-report data and the class verification, computing the rating from real data rather than estimates.
Why a rating that passes today can fail next year
Ships above 5,000 GT receive an annual CII rating from A to E, computed from fuel consumed and distance sailed, and the required reduction factor tightens each year through 2026 - so a vessel that passes this year can fail next on the same performance. A D for three consecutive years or a single E forces a corrective action plan, and estimated fuel data undermines the whole calculation.
The threshold tightens each year
The CII required reduction factor gets stricter annually through 2026, so a rating that passes this year fails next on the same operation unless intensity actually improves - a moving target that is easy to miss until the rating drops.
Fuel data is estimated, not measured
CII is only as good as the fuel and voyage data behind it, and where consumption is estimated or logged loosely the rating is unreliable and cannot stand up to verification.
A D or E forces a plan
A D rating for three consecutive years or a single E triggers a required corrective action plan in the Safety Management System, so a slipping rating is more than a number: it is an obligation and a commercial signal to charterers.
No visibility until it is too late
Without tracking the rating through the year against the tightening factor, an operator sees the problem only when the annual rating lands, too late to change the operation that produced it.
Carbon intensity tracked from real data
Four capability areas designed around computing and holding a UAE fleet's CII rating from accurate data.
Fuel and voyage data capture
Fuel consumed and distance sailed captured accurately from onboard and noon-report data, so the CII calculation rests on measured data rather than estimates and can stand up to class verification.
CII rating calculation
The Carbon Intensity Indicator computed per vessel and rated A to E against the current required factor, so the rating is known through the year rather than as a surprise when the annual figure lands.
Tracking against tightening factors
The rating tracked against the reduction factors that tighten through 2026, so a vessel heading for a downgrade on next year's stricter threshold is seen in time to act on the operation.
Corrective action planning
Where a D-three-years or an E looms, the corrective action plan supported and tied to the SMS, so the required plan is built on real data and tracked rather than scrambled after the rating lands.
A CII rating that lands once a year is seen too late to change. Custom software is the layer that tracks carbon intensity through the year against the tightening factor.
How each vessel rates.
A bars view shows CII rating by vessel. Each vessel's A to E band is shown against the rest, so the technical manager sees which vessels are strong and which are heading for a downgrade.
Discuss your CII complianceWhy UAE operators invest in CII compliance software.
The decarbonisation regime behind the rating.
Talk to us about CII and EEXI compliance software.
A short call surfaces whether custom CII software makes sense for your fleet. Best positioned for UAE operators with vessels above 5,000 GT carrying a CII rating. Working with your technical and energy leads during discovery, we map how fuel and voyage data is captured and the rating tracked today and where it is at risk. If discovery shows a class or off-the-shelf tool serves you, we say so. BY BANKS is an independent software engineering company: we design and build the platform and hand it over, your team operates it. Authority, regulator, classification society and product names on this page are referenced descriptively to describe interoperability and scope, and imply no affiliation, endorsement, certification, or approval.
How CII and EEXI compliance software works in marine
The detail behind the headline - from fuel and voyage data capture and the rating calculation, through tracking against tightening factors, to corrective action planning.
What changes, in practical terms
The rating is tracked against the factor that tightens through 2026, so a vessel heading for a downgrade on next year's threshold is seen while there is still time to act.
The detailed questions UAE operators ask us
Expand each to see how bespoke CII and EEXI compliance software actually works.
What does CII and EEXI compliance software actually cover?
Who this is for: UAE operators with vessels above 5,000 GT carrying an annual CII rating who want to track and hold it. Less suited to a fleet of small craft below the CII threshold.
Four connected capability areas: (1) Fuel and voyage data capture. (2) CII rating calculation. (3) Tracking against tightening factors. (4) Corrective action planning.
What is the difference between CII and EEXI?
EEXI, the Energy Efficiency Existing Ship Index, is a one-off technical measure of a ship's design efficiency that a vessel had to meet. CII, the Carbon Intensity Indicator, is an annual operational rating from A to E based on how the ship is actually run.
EEXI is a design threshold met once; CII is an ongoing operational rating that tightens each year. The software focuses on the live CII tracking, while holding the EEXI status as part of the vessel's record.
Does it replace the class CII verification?
No. The classification society or flag verifies the reported CII data and the rating is part of the regulatory regime; that verification stays with them.
The software computes and tracks your CII from accurate fuel and voyage data so the figure you report is sound and seen through the year, but the verification and the official rating remain the class or flag's. The software gets you ready and keeps you ahead; it does not self-certify the rating.
How does it improve on a spreadsheet?
A spreadsheet computes a number after the year from whatever fuel data was logged, with no view through the year and a tightening factor easy to misapply.
The software captures fuel and voyage data continuously, computes the rating against the current factor as the year runs, and flags a looming downgrade, so the rating is managed rather than reported after the fact.
Why does the tightening factor matter so much?
The CII required reduction factor gets stricter each year through 2026, so the same operation that earns a C this year can earn a D next.
The software tracks your rating against next year's stricter factor too, so a vessel on the edge is identified before the threshold moves under it and operational changes can be planned in time.
What does this sit alongside in a typical UAE marine stack?
CII tracking sits across data capture and compliance.
Data - it takes fuel and voyage data from onboard systems and noon reports.
Compliance - it connects to class for verification and to the SMS for the corrective action plan a D-three-years or E requires. Integration approach is scoped during discovery based on what you are already running, and we do not ask you to replace anything that works.
How long to go live, and what does it cost?
Discovery runs two to three weeks. Working with your technical and energy leads, we map how fuel and voyage data is captured and the rating tracked today and where it is at risk. Output is a report covering current-state map, gap analysis, recommended workflow, integration scope and a fixed-price build proposal.
A core build runs from discovery completion, with data capture and the rating calculation first and tracking and corrective action planning after. Pricing varies by fleet size, integration scope and complexity, so a bracket is not published; discovery produces a fixed-price proposal with no obligation to proceed.
Can it use our existing noon reports?
Most operators already produce noon reports with fuel and distance data.
The software can take that existing data as an input to the CII calculation, so you build on what the vessels already report rather than starting a new data stream, while improving accuracy where the data is currently estimated.
How each role experiences the change
Different roles feel CII differently. Custom software works when it reduces friction for each one.
Technical / Energy Manager
The rating tracked through the year against the tightening factor, so downgrades are seen in time.
Master / Chief Engineer
Fuel and voyage data captured accurately aboard, so the rating rests on real data.
DPA
Corrective action plans built on real data and tied to the SMS where a D or E looms.
Commercial
A defensible rating for charterers, so carbon intensity is a commercial strength not a surprise.
Questions We Get Asked
Who is CII EEXI compliance software marine for?
UAE operators with vessels above 5,000 GT carrying an annual CII rating who want to track and hold it. Less suited to a fleet of small craft below the CII threshold.
What is the difference between CII and EEXI?
EEXI, the Energy Efficiency Existing Ship Index, is a one-off technical measure of design efficiency a vessel had to meet. CII, the Carbon Intensity Indicator, is an annual operational rating from A to E based on how the ship is actually run. EEXI is met once; CII tightens each year. The software focuses on live CII tracking while holding the EEXI status.
Does it replace the class CII verification?
No. The class society or flag verifies the reported CII data and the rating is part of the regulatory regime; that stays with them. The software computes and tracks your CII from accurate data so the figure you report is sound and seen through the year, but the verification and official rating remain the class or flag's.
How does it improve on a spreadsheet?
A spreadsheet computes a number after the year from whatever fuel data was logged, with no view through the year. The software captures fuel and voyage data continuously, computes the rating against the current factor as the year runs, and flags a looming downgrade, so the rating is managed rather than reported after the fact.
Why does the tightening factor matter so much?
The required reduction factor gets stricter each year through 2026, so the same operation that earns a C this year can earn a D next. The software tracks your rating against next year's stricter factor too, so a vessel on the edge is identified before the threshold moves under it.
How long does it take to build?
Discovery runs two to three weeks and produces a fixed-price build proposal. Data capture and the rating calculation come first, with tracking and corrective action planning after.
How much does it cost?
Pricing varies by fleet size, integration scope and complexity. A bracket isn't published because the spread is wide. Discovery produces a fixed-price proposal with no obligation to proceed.
Can it use our existing noon reports?
Yes. It can take your existing noon-report fuel and distance data as an input to the CII calculation, so you build on what the vessels already report rather than starting a new data stream, while improving accuracy where the data is currently estimated.
Let's Discuss Your Project
Fill in the form, message us on WhatsApp, or send an email.
Quick Assistance
Chat with us directly on WhatsApp.
Open WhatsApp →Email Us
Gmail, Outlook, Yahoo & more.
Choose your email app →BY BANKS L.L.C-FZ
License No. 2425027.01
Meydan Free Zone, Dubai, UAE
Procurement-ready · UAE registered