The latest mandate, signed April 28, requires truck drivers operating on U.S. highways to be able to read traffic signs and communicate with both law enforcement and safety officials.

Truck Drivers Keep America Moving — Stress Is Driving Them Out Pressure is mounting behind the wheel. Driver stress is at an all-time high, pushing America’s truckers to the brink.

It is estimated that for every 11 truck drivers in the U.S., there is one truck parking space, resulting in a well-documented truck parking shortage.