Originally Posted by
flyerwma
Assume you meant SLC.
And yes, you can "sign up" on the Delta website, but only if you have a known traveller number by virtue of being a Nexus or Global Entry member. You "sign up" on the Delta website by putting said number in your Skymiles profile.
You are not selected by any other criteria but being a "known" traveler through association with Nexus, Privum or Global Entry. Once you are cleared, pay your 100 dollar initiation fee to be part of the club, you can dive right in to the TSA pre-approved line. Another way for the government to make a buck, in my humble opinion. And you'll pay it, because you care to be elite.