The Federal Aviation Administration (FAA) has announced measures to avoid disruptions at airports serving New York City and Washington D.C. this summer.

The agency said it will reduce flight requirements for airlines’ take off and landing rights to avoid congestion. Airlines have until April 30 to file requests to give up take-off and landing slots. The waiver would last from May 15 through Sept. 15.

Airline executives have repeatedly complained about air traffic control shortfalls contributing to flight disruptions as air travel sprang back from pandemic lows in the past few years.

Airlines last summer also reduced their schedules to avoid delays as they dealt with their own staffing issues and other strains.

The Federal Aviation Administration said it expects increased delays in the New York City area this summer compared with last year, projecting a 45% rise in delays with operations growing 7%.

Later this month, the FAA will hold a summit with airlines about other ways it can ease disruptions in the area. It held a similar event last year at Florida as airline passengers faced delays stemming from bad weather, high demand and congestion from issues like space launches and military exercises.