You also must have not used marijuana within the last 3 years (even medically or if legal in your state), and no illegal drugs within 10 years.
This lost a lot of applicants when they recruited at my college
The last guy seriously thought I was a plant there to discredit whoever approved me and called down to the local DMV to make sure my driver's license was real (it was) since he couldn't get a baseline on my name (three times)