Shipper’s Library

In this section you will find additional information and resources that may be helpful to shippers on the Colonial system. For additional information, please contact [email protected].


Transport4 (T4) is a third party technology company providing a single connection point for the communication of petroleum logistics transactions. T4 works hand-in-hand with carriers and shippers to improve nominations and shipping accuracy, increase communications, and ensure accountability across all points of interaction.

Colonial utilizes the T4 web-based portal as its primary means of communication to its customers. For additional information please contact T4 at [email protected].