The barriers were installed in areas where TSA officers interact with passengers, including the travel document checking podium and the area where passengers get their carry-on items screened.
The agency hopes to prevent the spread of coronavirus with the new equipment.
Meanwhile, the CDC is strongly recommending that passengers on planes, trains and buses wear masks, but it's still stopping short of requiring face coverings to prevent spreading COVID-19.
The Centers for Disease Control and Prevention says the virus is still being transmitted in the U.S. and internationally through travel. The CDC says masks should be worn by all passengers and workers on planes, ferries, trains, subways, buses, taxis and ride-sharing vehicles.
That includes in airports and at subway and bus stations.
All leading U.S. airlines require passengers other than small children to wear masks during flights, but enforcement can be spotty.
The Federal Aviation Administration has declined to require masks.
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(The Associated Press contributed to this report.)
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