The maritime emissions regulatory landscape is expanding fast. The Siglar Carbon Scheme Navigator puts the full picture in one place, expert-reviewed and free to use.
Maritime emissions regulation has never been more complex, or more commercially consequential. In the space of just a few years, the industry has moved from a single global reporting framework to a layered, overlapping set of schemes: the EU ETS, FuelEU Maritime, the UK ETS, CII, the IMO Net-Zero Framework, and a growing number of sovereign carbon initiatives from individual port states. Each scheme works differently. Each affects different actors in the value chain, on different routes, in different ways.
The challenge is not a shortage of information. It is a shortage of quality assured information and a common reference point. The Siglar Carbon Scheme Navigator solves this challenge: expert-reviewed, built from primary regulatory documents, and updated as the landscape changes.
The Scheme Navigator is free to use, and that is a deliberate choice. Siglar's ambition is to be more than a provider of data or standalone analytical tools, we want to build digital infrastructure that makes emissions information accessible, understandable and actionable. When every actor starts from the same up-to-date picture of the regulatory landscape, and its financial implications, it becomes easier to manage risk, allocate responsibility, and make better commercial decisions, decisions that also reduce emissions and the financial exposure that comes with them.

The Scheme Navigator is a free, interactive overview of every maritime emissions regulation with a direct and substantial commercial impact on the shipping value chain. It maps both implemented schemes and schemes under development, giving users a single, structured starting point to understand the regulatory landscape, without needing to read through hundreds of pages of IMO circulars, EU legislation and national frameworks to get there.
It is not a compliance tool. It is not a vessel tracking system. It does not show where emissions come from on a map. It shows which regulations exist, where they apply, who they affect, and, critically, it provides examples of how they financially impact commonly traded routes.
The Scheme Navigator launches with the schemes we believe matter most commercially right now. But the regulatory landscape will keep expanding, and so will the Navigator.
As new schemes emerge and existing ones develop, we will add them to the map. We also want to hear from users about what they would find most useful to see next, whether that is additional schemes, new geographies, or different ways of presenting the information.
If you have a view on what should be on the map, or what would make it more useful for your work, we would like to hear it. Tell us what you want to see →
The Scheme Navigator is intended for anyone in the maritime value chain who needs to understand the regulatory landscape, whether you are encountering these schemes for the first time or looking to verify your existing understanding against a quality-assured source:
The Navigator gives you the lay of the land. It is a structured starting point to understand the industry, assess your exposure, and move one step closer to more informed decisions. It is designed to support awareness, learning and early-stage assessment of maritime environmental compliance exposure, not to replace route-level cost modelling, fleet compliance management or regulatory risk assessment on specific voyages.
For users who reach the edge of what the Navigator can tell them, Siglar's platform and advisory services pick up from there.
The Siglar Carbon Scheme Navigator is free to use and requires no registration. Explore the Scheme Navigator →
Questions about what the regulations mean for your specific routes or fleet? Get in touch with us→
The Siglar Carbon Estimator calculates emissions costs implications to any vessel or route. Try it for free now →

Maritime emissions regulation has never been more complex, or more commercially consequential. In the space of just a few years, the industry has moved from a single global reporting framework to a layered, overlapping set of schemes: the EU ETS, FuelEU Maritime, the UK ETS, CII, the IMO Net-Zero Framework, and a growing number of sovereign carbon initiatives from individual port states. Each scheme works differently. Each affects different actors in the value chain, on different routes, in different ways.
The challenge is not a shortage of information. It is a shortage of quality assured information and a common reference point. The Siglar Carbon Scheme Navigator solves this challenge: expert-reviewed, built from primary regulatory documents, and updated as the landscape changes.
The Scheme Navigator is free to use, and that is a deliberate choice. Siglar's ambition is to be more than a provider of data or standalone analytical tools, we want to build digital infrastructure that makes emissions information accessible, understandable and actionable. When every actor starts from the same up-to-date picture of the regulatory landscape, and its financial implications, it becomes easier to manage risk, allocate responsibility, and make better commercial decisions, decisions that also reduce emissions and the financial exposure that comes with them.

The Scheme Navigator is a free, interactive overview of every maritime emissions regulation with a direct and substantial commercial impact on the shipping value chain. It maps both implemented schemes and schemes under development, giving users a single, structured starting point to understand the regulatory landscape, without needing to read through hundreds of pages of IMO circulars, EU legislation and national frameworks to get there.
It is not a compliance tool. It is not a vessel tracking system. It does not show where emissions come from on a map. It shows which regulations exist, where they apply, who they affect, and, critically, it provides examples of how they financially impact commonly traded routes.
The Scheme Navigator launches with the schemes we believe matter most commercially right now. But the regulatory landscape will keep expanding, and so will the Navigator.
As new schemes emerge and existing ones develop, we will add them to the map. We also want to hear from users about what they would find most useful to see next, whether that is additional schemes, new geographies, or different ways of presenting the information.
If you have a view on what should be on the map, or what would make it more useful for your work, we would like to hear it. Tell us what you want to see →
The Scheme Navigator is intended for anyone in the maritime value chain who needs to understand the regulatory landscape, whether you are encountering these schemes for the first time or looking to verify your existing understanding against a quality-assured source:
The Navigator gives you the lay of the land. It is a structured starting point to understand the industry, assess your exposure, and move one step closer to more informed decisions. It is designed to support awareness, learning and early-stage assessment of maritime environmental compliance exposure, not to replace route-level cost modelling, fleet compliance management or regulatory risk assessment on specific voyages.
For users who reach the edge of what the Navigator can tell them, Siglar's platform and advisory services pick up from there.
The Siglar Carbon Scheme Navigator is free to use and requires no registration. Explore the Scheme Navigator →
Questions about what the regulations mean for your specific routes or fleet? Get in touch with us→
The Siglar Carbon Estimator calculates emissions costs implications to any vessel or route. Try it for free now →
