All Department of Defense Personnel should pay for what all costs related to official travel using what method?

All Department of Defence personnel should pay for all cost related to official travel using the method of Government Travel Charge Card.

Explanation:

In order to perform cashless transactions while travelling, it is expected from all the Department of Defence officials that they use the GTC card to pay for all the travel related expenses during their travels done for official purposes. This method of payment ensures that the DoD officials are dispensed with the convenience of payment through their official travels. It is propounded that this method of payment is convenient, effective and safe in all the technical ways.