Washington ( CNN ) -- Tens of thousands of hurried passengers trying to check in at some of the busiest U.S. airports could soon find themselves in the fast lane . The Department of Homeland Security and the Transportation Security Administration are expanding their expedited screening initiative known as PreCheck to 28 additional airports this year , it was announced Wednesday . Seven airports across the country have already started the procedures , which allow travelers a faster screening process if they volunteer information about themselves prior to flying . In making the announcement at a news conference at Ronald Reagan Washington National Airport , Homeland Security officials said PreCheck will enable TSA to focus its efforts on passengers the agency knows less about in a more risk-based approach to screening . If the TSA determines a passenger is eligible for expedited screening , `` information will be embedded in the barcode of the passenger 's boarding pass , '' according to the department . Passengers who qualify may only rarely have to remove their shoes , jackets and belts , and extract laptops or liquids from bags . `` Good , thoughtful , sensible security by its very nature facilitates lawful travel and legitimate commerce , '' said Homeland Security Secretary Janet Napolitano . `` The expansion of TSA PreCheck to the nation 's busiest airports will increase our security capabilities and expedite the screening process for travelers we consider our trusted partners . '' The `` trusted traveler '' program wo n't guarantee expedited security screening , officials say . Participants will still be subject to random and unpredictable security measures . PreCheck will be implemented at the busiest U.S. airports throughout the year including , Baltimore/Washington , Boston Logan , Charlotte Douglas , Cincinnati , Denver , Fort Lauderdale , George Bush , Honolulu , Indianapolis , JFK , LaGuardia , Lambert-St. Louis , Louis Armstrong New Orleans , Luis Munoz Marin , Newark Liberty , O'Hare , Orlando , Philadelphia , Phoenix Sky Harbor , Pittsburgh , Portland , Ronald Reagan Washington National , Salt Lake City , San Francisco , Seattle-Tacoma , Tampa , Ted Stevens Anchorage and Washington Dulles . The TSA says it will continue expanding to additional airlines and airports beyond those already announced . Officials say more than 336,000 passengers have already been screened through PreCheck lanes affiliated with American Airlines in Los Angeles , Dallas , Miami , Las Vegas and Minneapolis , and with Delta Air Lines in Atlanta , Detroit , Las Vegas and Minneapolis . US Airways , United Airlines and Alaska Airlines will begin operations later this year . `` TSA PreCheck moves us closer to our goal of delivering the most effective and efficient screening by recognizing that most passengers do not pose a threat to security , '' said TSA Administrator John Pistole in a written statement . `` We are pleased to expand this important effort , in collaboration with our airline and airport partners , as we move away from a one-size-fits-all approach to a more intelligence-driven , risk-based transportation security system . ''
The expedited screening initiative PreCheck expands to seven additional airports Wednesday . Boarding passes of approved passengers will include information in a barcode . Officials : Existing American Airlines lines at 28 airports have handled 28 passengers .