Mail it Delivery Confirmation but not Signature Confirmation, as from what I have been told requiring a signature holds it up for a while. That may just be a myth, but I wasn't taking any chances...
I walked mine in and had them sign a piece of paper saying they recieved it.
i made one up but i modeled it after an Army form known as a DA-200, you should be able to find a copy if you google it.
I was actually declined because the state required me to get a PyscEval done since im a Vet and the VA refuses to do that Evals and i cant afford a private practice shrink to do the eval.