---
title: "GLEC 3.1 change summary "
url: "https://knowledge.bigmile.eu/en/article/glec-31-change-summary"
language: "en"
last_updated: "2025-01-10T14:11:14.269Z"
---

# GLEC 3.1 change summary 

The following changes have been introduced:

-   Introduced 3.1 framework version in logistics profile
-   When selected, only factors 3.1 factors will be used, regardless of shipment date
-   Adjusted emission factors for fuels and intensity factors
    -   Added new marine fuel variants based on IMO source data
        -   Note: values can only be expressed in KG. No conversion factors for liters have been provided.

-   Added latest 2023 CCWG tradelanes
-   For train, GLEC introduced an uplift of 12% for temperature controlled goods in GLEC 3.1. Users can indicate this via the temperature controlled column. By default we set is\_temperature\_controlled to False if it is not provided.
-   Adjusted Cargo types
    -   Bulk and general cargo -> Average/mixed
        -   Renamed to be consistent with GLEC. Bulk and general cargo is not available anymore via the logistics profile.
    -   Introduces light & heavy for certain vehicle types
-   Renamed vehicle types in line with 3.1:

| **Old name** | **New name** |
| --- | --- |
| Artic truck up to 40 t GVW | Artic truck 34-40 t GVW |
| Artic truck up to 44 t GVW | Artic truck 40-44 t GVW |

**To be added:**

-   Chinese vehicle types via the logistics profile
-   Bio/HVO Diesel blends