Moving air traffic controllers means retraining them on the quirks of a new facility, and the process can take years.

A meeting to discuss reducing the number of flights at Newark Liberty International Airport is set to continue tomorrow. The “delay reduction meeting,” called by the Federal Aviation Administration, started Wednesday and seeks to have airlines agree to not fly as many flights into the busy New Jersey hub airport to minimize cancellations and delays.

The move is in response to equipment failures and staff shortages that caused hourslong flight delays in recent weeks.