The United States Attestation is a completely free form that is available on the internet. One can simply submit the online form and would receive the attestation inside a few hours. This procedure wouldn't expect a great deal of time, which is why most people prefer to use this method rather than going through the procedure using paper and pen. Paper and pencil method would take more time but would cost much more cash, which is the reason why many people would rather choose the online filing option.