# Speed Categories
Speed categories are organisation-scoped custom tags used to categorise different speed and consumption profiles across vessels, TC contracts, and voyages. They are configured and maintained by your organisation.
Speed categories provide a consistent way to label and distinguish operational modes (for example, Eco, Weather Margin, or Full), making it easier to select and compare speeds across different contexts and sources. They can be assigned when creating or modifying a speed.
Speed categories are used for classification and selection only and do not affect calculation logic.
### **Business value**
* Reduces errors when selecting speeds by allowing users to quickly identify categories without comparing numerical values
* Speeds up the voyage estimation workflow, especially for vessels with multiple speed profiles
* Ensures consistent speed labelling across the organisation through standardised categories
* Improves clarity when speeds from multiple sources (vessel, TC, voyage) are presented together
### Speed category fields
Each speed category includes:
* **Speed Category Code** - mandatory, unique identifier (max. 5 characters)
* **Speed Category Name** - mandatory free text
* **Colour**
The **Speed Category Code** and **Colour** are used to generate the visual tag displayed across the system, helping users quickly identify speed categories in the selectors. See examples of how this appears in [speed selectors](https://docs.dataloy.com/voyage-management-system/voyages/maintain-voyages/overview/vessel#speed-and-consumption) and during [speed creation](https://docs.dataloy.com/voyage-management-system/vessels/vessel-speed-and-consumption-data#ballast-and-laden-passage-speed).
A generated tag
### **Manage speed categories**
Users can create, view, update, and delete speed categories.
The page displays all speed categories defined for your organisation, including how their visual tags appear.
(Figure 1) Speed Categories module
To create a new speed category, use the *Create Speed Category* modal:
(Figure 2) Create Speed Category modal
Select a colour
You can select or update the colour when creating or editing a speed category.
* Click the ***Colour*** field to open the colour picker and select a colour from the palette.
* Alternatively, define a custom colour using the selector or RGB/hex values.
To view or edit a speed category, select it from the list. When opened, it can also be disabled or deleted from the options menu (three dots icon) in the drawer (see Figure 3).
A speed category must be disabled before it can be deleted.
