Senior administration officials told CBS News this week that TSA is weighing an exception to the 3-1-1 liquids rule — but only at checkpoints with CT scanners, and only for PreCheck members. Not a repeal. Not something that touches the general boarding line. A carve-out, for a subset of airports, for a subset of travelers, that hasn’t been finalized and doesn’t have a date attached to it.

Open Jaw picked up the story Sept 14, and it’s been bouncing around travel news ever since, mostly framed as “TSA might kill the water bottle rule.” That headline oversells it. The rule doesn’t die here. It splits into two tiers — one for PreCheck members standing in front of a machine that can already tell the difference between water and something dangerous, and one for everybody else, unchanged, exactly as it’s worked since 2006.

Here’s what’s actually confirmed, what isn’t, and which airports are even in a position to run this if TSA pulls the trigger.

Quick Verdict

What’s being considered	A 3-1-1 exception letting PreCheck members carry full-size liquids through CT-scanner lanes
Who it would apply to	TSA PreCheck members only — not the general flying public
Where	Airports with CT scanners capable of distinguishing water from other liquids
How many airports qualify	Roughly two-thirds of U.S. airports have the CT scanner technology, per reporting citing Forbes
Status as of Sept 15, 2026	Not finalized. No airport list, no rollout date
Does the standard rule change today	No. 3-1-1 remains in effect nationwide for everyone
What it builds on	Gateside by TSA PreCheck, launched Sept 6, 2026
Bottom line	Nothing to pack differently yet. Worth watching if you already have PreCheck

What TSA Is Actually Considering

The mechanism is straightforward once you strip out the “TSA kills the water bottle rule” framing. CT scanners produce a 3D image of what’s in your bag and run it through automated detection software that can tell the difference between a bottle of water and a bottle of something that isn’t water. That’s a meaningfully different capability than the X-ray belt scanners most checkpoints still run, which can’t make that distinction reliably enough to trust with an exception.

Give a machine that can already make that call, and the logic for loosening the rule at PreCheck lanes gets a lot simpler: PreCheck members already passed a background check to enroll. Pair a vetted traveler with a machine that can verify what’s actually in the bottle, and TSA’s argument is that the risk calculus changes enough to justify skipping the 3.4-ounce limit — for that traveler, at that lane, on that machine.

It would not extend to standard security lanes, X-ray-only checkpoints, or anyone without PreCheck. TSA told CBS it isn’t “presently prepared to eliminate restrictions on all liquids,” full stop — this is scoped to a specific technology paired with a specific trusted-traveler population, not a step toward retiring 3-1-1 everywhere.

Which Airports Have CT Scanners?

This is the part most of the coverage this week has glossed over, and it’s the actual crux of whether this goes anywhere fast. TSA hasn’t published an airport-by-airport list of where its CT scanners are installed, and reporting on the potential PreCheck exception cites a Forbes estimate that roughly two-thirds of U.S. airports currently have the technology. That’s a real number, but “two-thirds have some CT scanners” isn’t the same as “two-thirds could run this program tomorrow” — a single CT lane in a terminal with six other X-ray lanes doesn’t get you a PreCheck-wide exception at that airport.

There’s no official TSA tracker for this, but a few things are worth knowing if you want a rough sense of where you stand:

1. Major hubs have been getting CT scanners first. Rollout has prioritized the highest-volume checkpoints, the same pattern TSA followed with Touchless ID’s 65-airport expansion earlier this year.
2. Coverage within an airport is uneven. Some checkpoints run CT scanners on every lane; others have it on one lane and X-ray on the rest. Which lane you get assigned on a given day isn’t something you control.
3. Independent trackers exist, but none are authoritative. CanIFlyWithThis’s CT scanner airport list compiles TSA press releases, airport authority announcements, and traveler reports into a rough map — and it says outright that deployment “changes monthly” and that travelers should still pack as if 3-1-1 applies everywhere. That’s the honest state of this data right now: better than nothing, worse than an official source.
4. TSA hasn’t named a single airport for this specific program. Having CT scanners is necessary but not sufficient — officials told CBS they haven’t decided which airports, if any, would launch the exception first.

If you fly through a major hub — a Delta, American, or United fortress hub, most large-city airports — there’s a decent chance some of your checkpoint lanes already have the hardware. Whether that translates into this specific PreCheck perk is a separate, unanswered question.

What Is the TSA 3-1-1 Rule?

The 3-1-1 rule limits carry-on liquids, gels, and aerosols to containers of 3.4 ounces or less, all of which must fit in a single quart-sized bag, one bag per traveler. TSA introduced it in September 2006, weeks after British authorities foiled a plot to detonate liquid explosives on flights from the U.K. to the U.S. and Canada. The rule briefly banned liquids outright before TSA settled on the 3.4-ounce threshold about a month later. It’s been unchanged since — twenty years this month, in what would be a genuinely ironic bit of timing if TSA announces something concrete this fall.

Why This Only Applies to PreCheck

TSA’s read on risk has always weighted two things: what’s in the bag, and who’s carrying it. X-ray-only checkpoints have never been able to answer the first question reliably enough to relax the liquids limit, so TSA solved for it the blunt way — cap the volume small enough that even a worst-case container can’t do much damage. CT scanners finally answer that first question better. Pairing that with PreCheck answers the second: a population that already went through Secure Flight vetting to enroll.

That combination — better machine, pre-vetted traveler — is the same logic behind Gateside by TSA PreCheck, which launched September 6, 2026 and lets non-ticketed PreCheck members walk to the gate without a boarding pass. Gateside didn’t invent new screening. It extended an existing PreCheck lane to a new use case for people TSA already trusted. This liquids exception would do the same thing to the same population, just applied to what’s in your bag instead of who’s allowed past the checkpoint.

It also lines up with the priorities TSA laid out in Horizon 25, its 25-year strategy framework that explicitly names PreCheck expansion as a goal. Three PreCheck-adjacent benefits inside about ten days — Touchless ID’s facial-comparison rollout, Gateside’s gate access, and now a liquids exception under consideration — isn’t a coincidence. It’s what “expand PreCheck” looks like when an agency does it through added perks instead of just adding enrollment centers.

What’s Actually Not Confirmed Yet

Worth being blunt about how early this is, because a lot of the coverage this week reads more finished than the reporting supports:

• No airport list. TSA hasn’t named a single airport that would run this first.
• No rollout date. “In the coming months” is the only timeframe attached, and that’s TSA’s own vague framing, not a commitment.
• No funding commitment for full deployment. The technology exists at roughly two-thirds of airports, but officials told CBS that even a PreCheck-only version isn’t funded to scale nationwide yet. Money, not just policy, is holding this up.
• No official TSA confirmation, even now. TSA’s on-record response was a boilerplate line about continuing to “explore opportunities to enhance security and improve the traveling experience” — the kind of statement an agency gives when it doesn’t want to confirm or kill a story.

Aviation experts aren’t convinced a partial rollout is even the right call. Metropolitan State University aviation professor Jeff Price told outlets covering the story that inconsistent rules across airports create real gaps: you’d end up with different liquids limits depending on which checkpoint lane you happened to get routed through, which is exactly the kind of inconsistency security screening tends to avoid on purpose. His view was that TSA probably needs something close to full CT deployment before it touches the rule at all — a much higher bar than “two-thirds of airports have some CT scanners somewhere.”

What This Means If You Don’t Have PreCheck

Nothing changes for you, and nothing is proposed that would. This isn’t a first step toward loosening 3-1-1 for the general flying public — it’s scoped, by design, to a population TSA already vetted and a machine that can verify what’s in the bottle. If you fly without PreCheck, you’re still packing liquids under 3.4 ounces in a quart bag, same as every flight since 2006.

If that’s frustrating, the honest comparison point is cost, not rules. PreCheck runs $85 for five years — about $17 a year — and even without this liquids exception, it already gets you shorter lines and no shoes-off requirement. Whether a possible future water-bottle perk tips that math for you depends entirely on how often you fly, not on this story.

Who Should Actually Pay Attention to This

Current PreCheck members who fly through major hubs regularly. You’re the population this would apply to first, if it happens, and you’re most likely to be routed through a CT-scanner lane already without knowing it.

Anyone deciding whether PreCheck is worth enrolling in this year. This isn’t a reason to enroll on its own — it’s not confirmed — but it’s one more data point in a year where PreCheck has picked up Touchless ID, Gateside, and now a possible liquids perk, all stacked on the same $85-for-five-years membership.

Frequent flyers tired of dumping water bottles before security. If this program does launch, it’s aimed squarely at you. Just don’t expect it this month.

Who Can Ignore This For Now

Anyone without PreCheck who isn’t already planning to enroll. Nothing here changes your packing routine, and there’s no proposal on the table that would.

Travelers flying through smaller regional airports. CT scanner deployment has prioritized high-volume hubs. If your home airport is a smaller regional field, it’s less likely to be an early candidate even if this program launches somewhere this year.

Anyone hoping for a firm date. There isn’t one. Revisit this once TSA names actual airports, not before.

The Bottom Line

This is a real, sourced report — CBS News heard it from senior administration officials, not travel-blog speculation — but it’s a proposal, not a policy. TSA is looking at whether CT scanners are good enough to let PreCheck members skip the 3.4-ounce limit, roughly two-thirds of U.S. airports have at least some of the hardware that could support it, and none of that has turned into an airport list, a rollout date, or a funding commitment. Everyone still packs liquids the same way today. If you have PreCheck and fly through a major hub, this is worth bookmarking. If you don’t, there’s nothing to do here except wait and see whether TSA turns “considering” into an actual announcement.

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Details current as of September 15, 2026, based on CBS News reporting and subsequent coverage. TSA has not confirmed a timeline, participating airports, or final program design — verify current rules at TSA.gov before you pack.