Dartford Crossing charges, exemptions and penalties. You must pay if you use the Dartford Crossing between 6am and 10pm. You must pay by midnight on the day after you cross. The payment service is called Dart Charge. You no longer pay at the barriers when you use the Dartford Crossing.artford Crossing charges, exemptions and penalties. You must pay if you use the Dartford Crossing between 6am and 10pm. You must pay by midnight on the day after you cross. The payment service is called Dart Charge. You no longer pay at the barriers when you use the Dartford Crossing.
Messages: 10,314. FPO most definitely stands for Fleet Post Office, they mostly service Navy and Marine personnel, however there are times when FPO's service Air Force and Army. APO stands for Army or Air Force Post Office. The same is true as above, however they ocassionally service Navy and Marine personnel.
APO/FPO/DPO Restrictions APO/FPO/DPO Restrictions. Military â This is a Military/Embassy specific ZIP Code for an APO/FPO/DPO (Air/Army Post Office, Fleet Post Office or Diplomatic Post Office). Mail addressed to military and diplomatic post offices overseas is subject to certain conditions or restrictions of mailing regarding content, preparation, and handling. For a complete list of restrictions to all APO/FPO/DPO destinations, see the most recent Postal Bulletin pull-out section.