"If you are a United States citizen and an existing member of one of CBP's Trusted Traveler programs, such as Global Entry, SENTRI or NEXUS or one of the more frequent flyers with Delta and American you more than likely received one of those communications," the blog continued. "This might be a good time to search your inbox to find it."
The agency said participation would not be limited to passengers who were initially emailed.
"If you didn’t get the initial communication or accidentally tossed it, there is still a way to participate in TSA Pre✓™," the blog said. "If you are a United States citizen and are currently a member of CBP’s eligible Trusted Traveler programs (Global Entry, SENTRI, NEXUS), you are automatically qualified to participate in the TSA Pre✓™ pilot as long as you are flying on a participating airline at a participating airport."
-The post was corrected from an earlier version that included a separate TSA program Oct. 20 at 9:24 a.m.