Which of the following is NOT required to issue a track bulletin?

The correct choice indicates that information on past incidents is not required to issue a track bulletin. Track bulletins are primarily focused on providing current and relevant track information necessary for safe train operations.

When issuing a track bulletin, it is essential to include details such as the name of the employee in charge, as this helps establish accountability and a point of contact for any questions or clarifications regarding the bulletin. Additionally, the bulletin must contain specific details of the restriction, which ensures that train crews are fully aware of any modifications to track usage or safety measures in place. Including the mile post location is also vital because it precisely identifies where the bulletin applies, aiding train crews in their navigation and adherence to restrictions.

Past incidents, while valuable for context and learning, do not directly contribute to the operational requirements needed for ensuring safety and compliance at the moment of issuing the bulletin. Thus, they are not a necessary component of the information that must be included in a track bulletin.