Can You Now Take Liquids On A Plane? | The 3-1-1 Rule

Yes, you can take liquids in your carry-on, but they must follow the TSA’s 3-1-1 rule: containers 3.4 ounces or less in a single quart-sized clear.

A travel influencer claims the liquid ban has finally lifted. Another says you can now bring full-size shampoo through security. It’s no wonder people ask, “Can you now take liquids on a plane?” with all the mixed signals online.

The short answer is yes, you can bring liquids—but the core rule hasn’t changed the way social media suggests. The TSA’s 3-1-1 rule remains the standard for carry-on baggage at U.S. airports. This guide explains exactly what you can pack, how to pack it, and which exemptions let you carry more than the usual 3.4 ounces.

The 3-1-1 Rule Hasn’t Changed (Here’s What It Does)

Every passenger gets one quart-sized, clear zip-top bag. All liquid, aerosol, gel, cream, and paste containers inside that bag must be 3.4 ounces (100 milliliters) or less. This includes items like shampoo, conditioner, sunscreen, toothpaste, and lotion.

The quart-sized bag must be easily accessible. You pull it from your carry-on and place it directly into a screening bin. If the bag is overstuffed or not easily removed, a TSA officer may flag it for a secondary inspection.

One bag per passenger is the hard limit. Couples or families cannot share one bag and double its volume. Each ticketed traveler gets their own clear bag and their own set of 3.4-ounce containers.

Why Travelers Keep Asking If The Rules Changed

The question persists even though the rule is stable. A few factors feed the confusion and make travelers hope the rules have loosened.

• New airport scanner technology: Some countries with CT scanners have relaxed their liquid limits. The TSA uses similar scanners in select lanes but maintains the 3-1-1 rule for standard screening.
• International policy variations: The UK and EU have adjusted their own liquid rules at different times, and a change in London does not mean a change in Los Angeles.
• Pandemic-era temporary rules: The TSA briefly allowed larger hand sanitizer bottles (up to 12 ounces). That relaxation ended, but it left lasting confusion about what is generally accepted.
• Misleading social media trends: Viral “hacks” often show outdated or inaccurate information. A video filmed during a temporary exemption gets shared months later as if it is current.

Checking the official TSA website before every trip is the best way to avoid surprises at the checkpoint.

Which Items Count as “Liquids” Under TSA Guidelines

The TSA defines liquids broadly. Obvious items include shampoo, conditioner, sunscreen, contact solution, and liquid soap. The definition also covers items you might not think of as liquids at first glance.

Gels, creams, pastes, and aerosols all fall under the 3-1-1 rule. Peanut butter, yogurt, hummus, mascara, and canned fruit are included. If it can be spread, poured, or sprayed, it likely counts. The exact wording is explained on the TSA 3-1-1 liquids rule page, which covers every category they enforce.

Solid items skip the rule entirely. Bar soap, solid deodorant, lip balm in stick form, and solid shampoo bars can go in your toiletry bag without any size restriction. Switching to solid alternatives is one way to skip the quart bag entirely.

If you are traveling with full-size toiletries, checked baggage is the most practical solution. The 3.4-ounce limit only applies to carry-on bags, so you can pack your regular-size bottles in a checked suitcase without worrying about the 3-1-1 rule.

How to Pack Your Carry-On Liquids for a Smooth Screening

Getting through security quickly depends on how well you prepare your liquids bag. A little planning goes a long way toward avoiding a secondary search.

1. Use the correct bag: A clear quart-sized zip-top bag is required. Do not use a dark, patterned, or oversized bag, even if it is clear.
2. Limit it to one bag per person: Trying to sneak two bags through the checkpoint will likely trigger a hand search of your carry-on.
3. Declare exemptions immediately: If you carry liquid medication, baby formula, or breast milk, tell the TSA officer at the start of screening.
4. Keep it accessible: Place the quart bag on top of your other items or in an outer pocket so you can pull it out quickly.

Following these steps reduces the chance that your bag gets pulled for additional screening. It also speeds up the line for everyone behind you.

Exceptions That Let You Bring More Than 3.4 Ounces

The 3.4-ounce limit has several important exceptions. Medically necessary liquids in reasonable quantities are allowed in carry-on bags without fitting inside the quart-sized bag. You must declare them to the officer at the checkpoint.

Baby formula, breast milk, and toddler drinks are also exempt. These items may exceed 3.4 ounces and do not need to go in the quart bag. They must be removed from your carry-on for separate X-ray screening. TSA notes that the X-ray process does not affect food or medicine.

Duty-free liquids purchased after the security checkpoint are allowed in carry-on bags, even if they exceed 3.4 ounces. They must remain in the secure, tamper-evident bag. For full-size toiletries, the checked baggage liquid limit is much simpler: standard sizes are allowed without any bag restriction.

The Bottom Line

The TSA’s 3-1-1 rule is still the standard for carry-on luggage at U.S. airports. Pack a single quart-sized clear bag with 3.4-ounce containers, keep it accessible, and declare any medical or baby-related liquids at the checkpoint.

For travel outside the United States, check the security rules of your departure and arrival countries on their official government travel pages, since liquid limits can differ significantly from the U.S. standard.