The Transportation Security Administration (TSA) has launched a new program at select U.S. airports that allows some people without plane tickets to go through security.

The program, called Gateside by TSA PreCheck, lets eligible TSA PreCheck members enter the secure area at participating airports to meet or see off family and friends at their gate.

“The Golden Age of Travel is taking off,” said TSA. “Gateside by TSA PreCheck provides members with access to the terminal beyond airport security, even when they aren’t flying. Just use your KTN to apply and use the same dedicated TSA PreCheck lanes for a smoother entry.”

“As an exclusive benefit for our most trusted travelers, this new program makes it easier to return to the gate for welcomes and send-offs, meet friends during a layover, and enjoy dining and shopping along the way, bringing back the moments that once defined air travel,” TSA added.

The program offers a new way for people without boarding passes to access airport gates, which has been heavily restricted since the Sept. 11, 2001, terrorist attacks. To use Gateside, visitors must have TSA PreCheck benefits and a Known Traveler Number, or KTN. Visitors can apply online for a Gateside pass between one and three days before their planned airport visit. The Gateside pass is free and valid only for the approved visit.

Once approved, visitors must bring an acceptable form of identification and their Gateside approval to the airport and go through a TSA PreCheck security lane. Visitors who do not have an acceptable form of identification can use TSA ConfirmID to verify their identity for a $45 fee, according to TSA.

Currently, 13 U.S. airports offer the Gateside program. TSA Administrator David Cummins stated that the number could grow rapidly: “We’re hoping to have all 430 airports rolled out by the end of the year.” Additionally, about 20 U.S. airports already provide day passes for visitors.