Big Changes Ahead: US May Ditch 100ml Liquid Rule at Airport Security
Relaxing Liquid Limits Could Transform Air Travel Screening
The Department of Homeland Security may soon relax the 100ml liquid limit enforced by TSA at US airport checkpoints. Homeland Security Secretary Kristi Noem hinted at the possible change during a recent summit in Washington, D.C.
She said questioning the liquids rule might lead to the next big announcement in passenger screening improvements. If implemented, this would mark the biggest security policy shift since the post-9/11 airport reforms began in 2001.
The Iconic 3-1-1 Rule Might Finally Be Replaced
TSA introduced the 3-1-1 rule in 2006 after UK police foiled a terrorist plot using liquid explosives on transatlantic flights. The rule limits carry-on liquids to 3.4 ounces (100ml), all stored in one quart-size resealable plastic bag. While larger quantities are allowed in checked luggage, carry-on restrictions have frustrated flyers for nearly two decades.
Noem believes such rules must evolve if they no longer enhance safety or serve a practical screening purpose.
A Future with Faster, More Seamless Airport Screening
Speaking at the Hill Nation Summit, Noem “Described a future where airport security is fast, smart, and non-intrusive.” She envisions travellers walking straight to flights after a single scan, all within one minute of entering the airport.
To make this vision a reality, DHS is working with tech firms and testing advanced scanners at select airports. Officials say any new procedures will maintain layered security, even as they improve the experience for millions of travellers.
The US Travel Association praised DHS for its willingness to reconsider old rules without sacrificing national aviation security. These types of changes, they said, signal genuine progress toward smarter and more traveller-friendly air screening processes.
White House Press Secretary Karoline Leavitt also welcomed the conversation, praising Noem’s proactive stance on passenger convenience. Any official changes to the liquids rule will be announced by DHS through formal channels once decisions are finalised.
Pilot Programs Are Already in Development Across the Country
Travellers could start seeing liquid limit changes first at pilot locations testing new scanning technology in selected airports. These trials will allow DHS to assess how effectively new tech balances convenience, speed, and stringent safety standards.
If successful, the pilot programs may lead to a nationwide overhaul of outdated restrictions still in place today. Noem emphasised: “Security rules must evolve when they stop making sense without ever compromising public safety.”