Americans who receive a COVID-19 vaccine will be getting a ‘vaccination card’ as evidence, health officials say.

The Department of Defense showed off the card on Thursday, which tracks the date and serial number of each vaccine shot, along with where it was administered and when the next shot is due.

The cards will be included in each vaccine kit, which also includes a needle, syringe, mask, and alcohol wipes.

Officials have said the first round of vaccines could begin as early as Dec. 15th if Pfizer’s vaccine is approved by the FDA next week.