Proper screening is not a federal requirement.
Reducing fatigue-related accidents and managing physical fitness are priorities for the NTSB and now the Mass Transit Authority of New York and New Jersey.
According to the NTSB’s chairman, Robert Sumwalt, "The traveling public deserves alert operators, and that's not too much to ask."
However, in cost-cutting efforts, President Donald Trump allowed individual railroads to determine whether to conduct sleep apnea testing. He scrapped a proposal from President Obama’s administration that required sleep apnea testing.