Since each printer is different, you may have to play around to get the ID cards to print on both sides at their normal size which should be 100%.  You need to print both sides.  Some printers have this 2 sided, duplex printing or you may have to print the first side then reinsert the same sheet and print the reverse side.

Prior to printing, Type in your FMCA   "F" number in either box (after you click outside the box it will automatically fill in the other cards' box).  An F number example: F 308379.

You may even want to print on a heavier card stock unless you plan on laminating them.

You might want to print enough to give someone who may be an emergency contact, such as your children, and explain that should you or your spouse need any assistance from this program and you are not able to communicate, they need to contact the printed phone number and give them your name and "F" number prior to obtaining assistance.