Declarations of emergency for HOS exemptions Motor carriers and drivers providing direct emergency relief to, from or within Louisiana, Texas, Alabama and Mississippi are temporarily relieved from Parts 390-399 of the Federal Motor Carrier Safety Regulations, including hours-of-service, regardless of commodity carried. The Louisiana and Texas exemptions run until September 26, Alabama until September 28, and Mississippi until September 30. More information can be found at: www.fmcsa.dot.gov/emergency/ disaster-relief.htm.               return