What's the TFA? By the time you read this, most states will already have had this dealt with, but if you haven't had the luxury of dealing with this, here's your intro.
TFA stands for Two-Factor Authentication, and it's basically another hoop that you'll have to jump through to access your Dept of Ed login sites. You will still use your UserID and Password, but then it will take you to another screen where you have to input a temporary password. All it has is a power button and that's it. Once you push the button, it will countdown using some dashes, then display a 6-digit temporary password. After 30 seconds, the screen goes blank. Type in this password and you will be able to access your site as normal.