Government travelers on official travel must use adequate and available Government Quarters (NGIS, Navy Lodge). If these are not available, then the traveler must obtain a "Certificate of Non-availability" (CNA) which authorizes the traveler to stay out in town at the Commercial Per Diem rate ($96 in Dahlgren). If you stay at a commercial lodging without a CNA, the government is still obligated to reimburse you but only at the cost the government would have paid if you stayed in government quarters ($87 per day at the NGIS in Dahlgren)
5 years ago the DoD started a program called the Integrated Lodging Pilot Program, which designates selected commercial lodging establishments as the "preferred" alternatives when no Government Quarters are available. If you attempt to reserve a room at NGIS in Dahlgren and they tell you that no rooms are available, they may give you an "Open" CNA which allows you to lodge anywhere at the commercial rate ($96). If you receive a "Closed" CNA, that means the CNA document directs you to seek lodging at a specific place (i.e. Holiday Inn).
If issued a "Closed" CNA directing you to a particular lodging you do not wish to stay at (example: you have had bad experiences with a particular franchise lodging), you can ask the NGIS personnel for an open CNA. Most times they will issue it.
If you are issued a Closed CNA directing you to a specific lodging, and you choose not to stay there, then you will still be reimbursed, but only at the rate which the government would have paid, had you stayed at that specified lodging.
Our rates match the current government per diem rates for Dahlgren VA ($96 per night). Should you receive a closed CNA and wish to stay with us, we will work with you to ensure your nightly rate meets the reimbursable threshold IAW the JTR. You are our shipmates and if your travel claim isn't right, then we have failed you, and we won't let that happen!