Pending approval through an Investigative New Drug Application, the aerosolized form of the vaccine will be evaluated for replication,
safety and immunity development in a
study in adults.
Beginning in FY 2015, Congress prohibited the use of appropriated funds by the Federal Motor Carrier
Safety Administration (FMCSA) to enforce amended restart rules adopted in 2011
pending the results of an FMCSA
study comparing that rule with its predecessor, which only required a 34 - hour restart period, thus encompassing a single nighttime rest period.