How long is foul time effective once issued?

Prepare for the CPKC Train Dispatcher Trainee Test with interactive flashcards and multiple-choice questions. Each query is complemented by hints and detailed explanations. Equip yourself for the test now!

Foul time is an essential safety measure that protects workers on or near the tracks by ensuring that trains do not enter a particular section where work is being conducted. The correct choice highlights that foul time remains effective until the requesting employee releases it. This means that while work is ongoing and the need for protection is present, the foul time remains in effect to safeguard the workers.

Once the requesting employee determines that the work has been completed or that it is safe to resume regular train operations, they can release the foul time. This mechanism is important because it places the responsibility on the worker who understands the conditions and requirements of the work site. The foul time cannot simply expire on its own or be automatically canceled by other operations; it requires a conscious action from the requesting employee to ensure that safety is maintained throughout the work period.

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