Your company is a alternative energy consulting company that has exclusively worked with commercial clients. You were invited by a nearby Army base contracting office to bid on a project to advise the base commander on how the base could implement solar and wind power projects on the base. You struggled through preparation of a proposal in response to the RFQ. After some discussions with the contracting officer and the base technical personnel, your company has been awarded a cost plus fixed fee contract. What issues should you be concerned about in terms of getting paid for your work? What is your CPA going to tell you that you have to do?