WASHINGTON — The Transportation Security Administration is recommending that armed personnel be present at airport checkpoints during peak hours of passenger traffic, though airports would be able to tailor the security to their specific needs, according to a report released on Wednesday.

The T.S.A.’s report also suggests that security be increased at ticket counters and other areas in airports where passengers often gather. And it recommends mandatory training for all T.S.A. employees on how to respond to a shooting; twice-yearly evacuation drills; and the installation of panic buttons at airports that do not have them — and routine testing of such alerts.

The report, which was first obtained by The Associated Press, was in response to a shooting last year at Los Angeles International Airport in which a worker was killed.

The report’s recommendations are limited in scope. They would not require airports to hire new officers, only to reassign those who are already on duty, concentrating them at checkpoints and ticket counters during peak periods of passenger arrivals and departures.