Most air travelers have been in this scenario: waiting their turn to board a flight as fellow passengers shove their carry-on bags in the metal bag sizers to prove they comply with the airline's restrictions.

In an effort to speed up the boarding process, American Airlines started phasing out the bag sizers at airport gates on Oct. 6, leaving it up to passengers and gate agents to use their discretion.

If any carry-ons exceed 22 x 14 x 9 inches, including the wheels and handles, as listed on American's website, gate agents will enforce the airline's policy of checking those in.

"As we further simplify the boarding experience for our customers and team members, American will soon remove bag sizers from the gate area," the airline told USA TODAY in an email statement.

It's just the latest in the Texas-based airline's move to streamline the boarding process. In 2024, the airline started to crack down on "gate lice," or passengers who block the gate until their group is called to board.

The sizers will still be on display in airport lobbies for people to ensure their carry-on complies with the allowed dimensions.

Even though it can be frustrating, most people's bags are gate-checked due to a lack of space – either their bag won't fit in the overhead bins due to the plane's size or the flight is too full and the bins are occupied.

In 2020, United Airlines removed its bag sizers from the gates to depend on its passengers and team members to make the call in order for a "more seamless travel experience for everyone," the airline told SFGate.

This article originally appeared on USA TODAY: American Airlines will have gate agents let you know if your carry-on is too big

Reporting by Kathleen Wong, USA TODAY / USA TODAY

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