Since our ramp buddy in OAK made an idiot of himself and us on SWA, we ALL have to re-validate every 6 months. And you can only take the test on a company computer. If you are one day beyond your 6-month "I will not be a jerk" test, the site will not let you log on.
And yes, siggy112, this is about FedEx, as stated in the thread title. Glad you can log on with no issues, whatever company you work for.