A major shift in airport security could be on the horizon for U.S. travelers. Homeland Security Secretary Kristi Noem has suggested that the TSA’s long-standing rules on liquids might soon be relaxed — a potential move that many flyers would welcome.
The current “3-1-1” rule — allowing passengers to bring liquids in containers of 3.4 ounces or less, all fitting into a single quart-size bag — has been in place since 2006. It was introduced after authorities thwarted a terror plot involving liquid explosives. But nearly two decades later, scenes of travelers hurriedly chugging drinks or tossing toiletries before screening remain a familiar part of airport life.
Speaking at a Washington D.C. event hosted by The Hill, Noem hinted change is coming: “The liquids — I’m questioning. That may be the next big announcement.”
No details were given about how much more liquid might be allowed or whether multiple bags could be permitted. But her remarks follow a recent change allowing travelers to keep their shoes on at some TSA checkpoints — suggesting a broader easing of post-9/11 security rules may be underway.
Air travel security underwent a massive overhaul following the September 11, 2001 attacks. Private contractors were replaced by federal oversight under the newly created Transportation Security Administration (TSA). The liquids rule came later, in response to a 2006 plot involving liquid explosives. After a brief total ban, TSA adopted the current policy based on tests showing small amounts of liquid posed less threat.
The changes forced consumers and manufacturers to adapt, creating a booming market for travel-size products and clear toiletry bags — now a common sight on retail shelves worldwide.
Keith Jeffries, a former TSA director at Los Angeles International Airport and now an executive at K2 Security Screening Group, recalled the chaos when the liquids rule was first enforced overnight. “I remember toothpaste, shampoo, shaving cream — even shoes with gel soles — all being tossed in barrels,” he said.
Any move to simplify screening and speed up checkpoints would be a welcome relief, said Henry Harteveldt, an aviation industry analyst with Atmosphere Research Group. He noted that long security lines themselves can pose a safety risk, making faster processing all the more valuable.
The recent shoe policy change, while minor in terms of time saved per person, could have a significant impact when multiplied across millions of travelers, Harteveldt said. Relaxing liquid rules could amplify that effect.
Still, questions remain. “Will passengers be allowed to carry full-size toiletries again? More than one bag? Will the quart-size limit go away?” Harteveldt asked.
It’s possible, he said, that any policy change would roll out gradually — and only at airports equipped with advanced scanning technology. While newer CT scanners can better identify liquid threats, they are still not available in most U.S. airports. Jeffrey Price, an aviation professor at Metropolitan State University of Denver, estimates full implementation could take another 10 years.
Price cautioned against rushing such decisions. “This needs far more study than the policy to leave your shoes on,” he wrote in an email.
Jeffries added that expanded liquid allowances and relaxed shoe rules could also affect TSA PreCheck, which currently offers expedited screening to enrolled travelers. “If regular passengers start getting the same benefits, it’s unclear how that will impact PreCheck enrollment,” he said.
For now, travelers await clarity — and potentially shorter lines, fewer hassles, and the long-awaited return of full-sized shampoo bottles to their carry-ons.
