For orders greater than 30 days, the member must pre-certify the orders on the first day of duty to initiate bi-weekly pay.  To pre-certify orders, complete blocks 36 a-b, 37-39, 40 (report time and date) only and 41-44. Blocks 39 and 44 must be on or after the first day of duty. Submit the pre-certified orders to the pay office via myFSS. If during the tour the orders are curtailed or extended, the modification MUST be submitted so the pay office can change the pay end date accordingly. On the final day of the orders, a completely certified set of orders with any modifications also needs to be submitted the same way.