Division 4 As a minimum, the following standardised back office interfaces must be implemented by all EETS Providers. Toll Chargers must implement each interface, but can choose only to support either the GNSS or DSRC charging process.

Exchange of toll declaration data between EETS Providers and Toll Chargers, specifically:

• Submission and validation of claims for toll payment based on DSRC charging transactions,

• Submission and validation of GNSS toll declarations;

Invoicing/settlement;

Exchange of information to support exception handling:

• in the DSRC charging process,

• in the GNSS charging process;

Exchange of EETS blacklists;

Exchange of trust objects;

Sending of Toll Context Data from Toll Chargers to EETS Providers.