1. Transport and hub entities and data intermediaries shall prioritise the use of primary data for calculating the greenhouse gas emissions from transport services.
A Member State may provide that the use of primary data be compulsory for transport operations on its territory carried out by transport and hub entities, the number of employees of which exceeds a specific threshold set by national law, where the transport service starts and ends on its territory. The Member State shall not apply such a requirement to cross-border transport operations, including to transport operations in transit through its territory, or to SMEs.