New Travel Expenses object
Description
As of release 3.0, there is the new Travel Expenses object Reiseregion for differentiating reimbursement rates.
Change system parameters in customizing
If you would like to make use of this feature, you must first 
Define travel regions.
After that, you must define the
Accommodations rates, the
Meals rates and the
Meals rates/Time for the travel regions you have defined.