PolicyBrief
S. 1759
119th CongressMay 14th 2025
Supersonic Aviation Modernization Act
IN COMMITTEE

This act directs the FAA to establish rules allowing civil supersonic flight over the U.S. provided no sonic boom reaches the ground.

Ted Budd
R

Ted Budd

Senator

NC

LEGISLATION

FAA Must Clear the Air for Supersonic Flights Within One Year—But Only If the Sonic Boom Stays Off the Ground

The Supersonic Aviation Modernization Act is a short, sharp mandate aimed at bringing back the age of super-fast air travel over the U.S. What it does is simple: It forces the Federal Aviation Administration (FAA) Administrator to update or create new rules within one year that allow civil aircraft—your non-military planes—to fly faster than the speed of sound (Mach 1 or greater) across U.S. airspace without needing special one-off permission.

The Need for Speed, Minus the Noise

For decades, the sound barrier has been the invisible wall preventing commercial planes from flying supersonically over land, mostly due to the massive, house-rattling noise known as the sonic boom. This bill (SEC. 2) directly addresses that restriction by saying, ‘Go ahead, fly fast,’ but with one absolutely critical condition: the aircraft must be operated in a way that “prevents any sonic boom from actually reaching the ground anywhere in the United States.” Think of it like this: the bill is giving the aerospace industry the green light, but only if they can figure out how to make a truly quiet sonic boom.

What This Means for Everyday Life

If the industry nails this, it’s a game-changer for travel times. Imagine reducing a cross-country flight from New York to Los Angeles from six hours down to three. For the professional who frequently travels for business, or the family trying to maximize vacation time, that’s a huge efficiency gain. This bill is essentially placing a massive technological bet: that new aircraft designs—often called 'low-boom' or 'quiet supersonic' technology—are ready for prime time. The FAA has a tight one-year deadline to figure out the regulatory framework for this new era, which is a significant lift for an agency that moves notoriously slowly.

The Regulatory Challenge: Defining 'No Boom'

Here’s where the rubber meets the road, or perhaps where the boom meets the ground. The bill’s core requirement—preventing any sonic boom from reaching the ground—is highly ambitious and a bit vague. What exactly counts as “preventing” a boom? Is there a specific decibel level that’s acceptable? This lack of a clear, measurable standard (SEC. 2) puts the pressure squarely on the FAA. If they set the noise threshold too high, it could effectively block all supersonic flight, defeating the purpose of the bill. If they set it too low, communities living beneath these flight paths could end up dealing with unexpected noise pollution, despite the bill's intent. This vagueness could lead to regulatory battles down the line, potentially slowing down the very modernization the Act aims to achieve.