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.
There are two main differences between FAP and HNPCC, and they include: 1  Number of genes mutated. In FAP, there is only one gene, the APC gene, which is abnormal. 2  Presence of polyps, or growths that can become cancer. FAP is characterized by the presence of more than 100 benign polyps.