Issues that arise during the reimbursement process generally stem back to items that were either not on the REQ-A or were not documented.
Example: If equipment was damaged on the mission, it should be documented and the home state emergency management should be notified. Depending upon the extent of the damage, they may choose to amend the REQ-A. If it is not reported or documented but during the reimbursement process, there is a request to repair or replace damaged equipment, it will cause an issue and likely a delay.
Other items that must be clearly stated on the REQ-A include the payment of 24/7 duties, expenses associated with the backfill of positions for deployed personnel, unanticipated costs that far exceed the initial cost estimate, and claims for expenses that are not related to the mission being performed.
Two extreme, but actual, examples of issues encountered in the past are expenses for alcoholic beverages claimed "for morale purposes" and expenses for silk-screened T-shirts for deployed personnel. Neither of these items was necessary or directly related to the mission performed nor were they on the REQ-A; and therefore, neither expense was eligible for reimbursement.