NEW YORK, NY September 02, 2009 —The Federal Aviation Administration says it will change rules for flying over the Hudson River, in the wake of a deadly crash last month. Pilots will be required to use a common radio frequency when flying below 1,300 ft.

New York Representative Jerrold Nadler's office says the FAA isn't going far enough. The Congressman wants all traffic over the Hudson to be monitored by radar.

But Mayor Bloomberg says that's not realistic.

BLOOMBERG: The Hudson River is much more like the rest of this country. You can't have controllers covering every bit of airspace in the country. It would require more controllers than exist probably in the whole world.

REPORTER: The FAA plan would also divide the airspace above the Hudson to separate helicopters and airplanes.

The FAA rules follow last week's recommendations from the National Transportation Safety Board, which is investigating the August 8th collision over the Hudson.