WASHINGTON – The government told passenger airlines Wednesday they’ll have to do more to ensure pilots aren’t too tired to fly, nearly three years after the deadly western New York crash of a regional airliner flown by two exhausted pilots.

The Federal Aviation Administration’s update of airline pilot work rules, some of which dated to the 1960s, reflects a better understanding of the need for rest and how night shifts and traveling through time zones can increase errors.

Transportation Secretary Ray LaHood said, “This is as far as our government has ever gone” to protect the traveling public from pilot fatigue.

Carriers have two years to adapt to the new rules. The FAA estimated the cost to industry at $297 million over 10 years.