This app can help you shorten your wait time at customs as TSA experiences record travel

WATCH: App to help you pass customs while traveling

As airports prepare for the highest passenger volumes this summer, the Transportation Security Administration is bracing for the travel rush and sharing what passengers need to know to get through busy airports with some ease.

TSA has already announced this weekend as the second busiest day in history as summer traffic only increases during the peak season.

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In this March 4, 2015, file photo, CBP demonstrates a new app and passes her iPhone over a scanner as she uses the new mobile app for expedited passport and customer screenings being unveiled for international travelers arriving at Miami International Airport.

Last weekend, the TSA reported that more than 2.9 million people were screened nationwide, and in the past 30 days alone, the agency recorded seven of the top 10 busiest travel days in TSA history.

This summer, the agency predicts it will see 3 million travelers in one day for the first time in history.

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Miami International Airport, US Customs and Border Protection terminal welcome sign on December 24, 2022.

For travelers planning an international trip, there is a tool that may be able to help reduce wait times in lines at U.S. Customs and Border Protection when you return to the country.

The Mobile Passport Control, which has a free app for travelers, is administered by the Border Patrol agency and allows eligible U.S. travelers to submit travel documents, a photo and customs declaration information before reaching the line or an agent.

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In this March 4, 2015, file photo, a sign directs passengers to the mobile passport control window set up for international travelers arriving at Miami International Airport in Miami in March.

Once the traveler enters their details, this can shorten the time it takes to speak to a customs officer and they may send you to a separate line that is usually much shorter than the standard line for US passport holders.

MPC operates at many major airports upon return to the US, as well as 14 foreign airports.