The Federal Aviation Administration released new rules aimed at keeping air traffic controllers from falling asleep on the on the job.
The new standards, unveiled Sunday, are in response to several recent incidents involving air traffic controllers caught sleeping while on duty.
Controllers are now required to have at least a nine-hour break between shifts. Also, management will be required to be on duty during late night and early shifts when controllers are most likely to fall asleep.
Transportation Secretary Ray LaHood rejected suggestions of allowing controlled naps while on the clock.
"They're going to be paid to do the job that they're trained to do, which involves guiding planes in and out of airports safely," LaHood told CBS' "The Early Show," on Monday.
"We want to make sure that they're well rested," he said. "We want to make sure that in the workplace there's the ability for them to do their job."
"We're not going to be paying controllers to be napping -- we're not going do that," LaHood said.
LaHood indicated there will be more changes to come.
"We think what we've put in place is good," he said. "But we need to do more. We will do more. We won't stop until we've got a complete system that makes sense."