# Events according to HCMI - 2024 updates

We’re expanding our methodology support for train emissions. From now on, energy scope differentiation is available for train calculations based on the **CO2 Emissiefactoren** framework.

## What's New?

### 🔄 Added Scope Support

For all train emission calculations using the CO2 Emissiefactoren methodology, you can now choose between:

* **TTW (Tank-to-Wheel):** Emissions from vehicle operation only.
* **WTW (Well-to-Wheel):** Full life-cycle emissions, including energy production, transmission, and final use.

This enhancement allows for:

* More accurate reporting aligned with customer expectations and regulatory demands.
* Greater control in distinguishing between operational vs upstream emissions in carbon reporting.

Refer to the API documentation for implementation details on how to select energy scope when using CO2 Emissiefactoren for train-related calculations.


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