TIH Facts

Union Pacific is a common carrier by rail. Federal law does not allow common carriers by rail to refuse to transport hazmat. Trucks and barges do not have this same obligation and may refuse to carry hazmat at their discretion.

Union Pacific does not make Toxic Inhalation Hazard materials, own the tank cars the move TIH, load or unload those tank cars or decide the origin or destination to which it is shipped. Federal law requires common carriers by rail to transport TIH.

Rail shipment of TIH is the safest option for above-the-ground transport.

  • Trucks are 16 times more likely than trains to have a hazmat incident.
  • More than 99.99 percent of rail hazmat shipments reached their destination without a release caused by a train accident, and rail hazmat accident rates are down 91 percent since 1980.

Union Pacific invests heavily in time and money to improve TIH transportation safety, implementing and funding an array of security and safety TIH-related initiatives, exceeding mandatory TIH-compliance measures, including:

  • Security audits
  • Yard surveillance
  • Extra car/track inspections
  • Speed restriction
  • Strict chain of custody and control
  • Reducing dwell times in HTUAs

We recognize that rail shipment of TIH is the safest option for above-the-ground transport, and we are continually evaluating and investing in our processes and procedures to ensure that all hazardous materials continue to be handled with the highest level of safety and security. We are proud of our excellent safety record and are supportive of proven efforts to enhance safety.