Stop Underrides Act 2.0

This bill requires the National Highway Traffic Safety Administration to establish new safety standards for side underride guards on trucks and trailers within 18 months, with full compliance required within two years. The standards mandate that these guards prevent passenger vehicles from sliding under trucks during collisions, improve safety for vulnerable road users like motorcyclists, and include aerodynamic features to aid fuel efficiency. The bill also creates an advisory committee to monitor underride safety and mandates studies to better understand and prevent these crashes. It aims to reduce the thousands of deaths and injuries from underride crashes that have occurred over the past 50 years, as documented by the National Transportation Safety Board.