TREND. Hot Air Balloon Regulation.

In 2014, NTSB urged stronger regulation of hot air balloons.

In 2015, the FAA responded by saying that the chance of accident is ” so low”

In March 2016, the NTSB reissued its letter urging stronger regulations of hot air balloons.

The Wall Street Journal | U.S. Regulatory Debate About Sightseeing Balloons Spans Years