Thank you for your interest in becoming a qualified vendor for Thoroughbred Direct Intermodal Services, Inc (TDIS).  TDIS is a wholly owned subsidiary of Norfolk Southern, offering many unique product lines to IMCs, freight brokers, 3PLs and trucking companies.  Reliable, economical, quality drayage is a key component in the service we provide our customers.

Interested carriers must:

  • Participate in the Uniform Intermodal Interchange and Facilities Access Agreement (UIIA), as well as completing and filing the Norfolk Southern addendum.
  • Maintain an active account with either FYX breakdown services
  • Provide pickup and delivery status updates within 15 minutes of driver arrival or departure via use of TDIS' vendor web interface
  • Monitor email and provide timely responses to TDIS inquiries
  • Maintain consistently high on-time service percentages (TDIS requirement is 97% or higher)
  • Submit paperwork to TDIS within 24 hours of all pickups and 48 hours of all deliveries

To be considered for use by TDIS you must submit the following:

Completed documents can be sent by email to

For more information please review our Intermodal Drayage Handbook.