How does the EIC grant permission to enter out-of-service limits?

The correct answer is that the EIC grants permission to enter out-of-service limits by showing or reading the Form D. This is a formal method of communication that is documented and ensures that all parties involved clearly understand the parameters and conditions under which access is granted. Form D is an official authority that outlines specific instructions or permissions, and using it provides a verifiable and auditable record of the authority given.

This method is critical in maintaining safety and compliance with operational protocols, as it helps to prevent misunderstandings that could arise from less formal means of communication, such as verbal orders or signals. By utilizing Form D, the EIC establishes a clear, accurate record that can be referenced by employees, which is essential for managing train operations effectively and ensuring the integrity of the rail system.