Copies can usually be ordered online, but to obtain the original license, you will need to visit your county clerk’s office. They will want to verify your identity, so bring your I.D. There may also be other paperwork you’ll need to fill out. In many cases you can do this portion online. Some counties also require blood tests, but nearly all county clerks offices will charge a fee. Some states have a required waiting period, but you can have your marriage certificate sent by mail. You will need to sign it, along with your spouse, the clergy who performs the union, and witnesses.