The programme is based on EMSA reimbursing 75 % of the associated costs for the expert to go on an exchange with the remaining 25% being at the expense of the country sending the expert abroad. All costs (flights, hotel, & expenses) will be paid in advance by the expert and EMSA will subsequently reimburse 75 % of these costs according to its rules for reimbursement. The typical duration of an exchange is from 2 days to 2 weeks.