When is the ILS Hold Short rule in effect?

The ILS Hold Short rule is specifically in effect when visibility is less than 800-2. This regulation is implemented to enhance safety during ILS (Instrument Landing System) operations when visibility is compromised. The low visibility conditions necessitate stricter protocols to prevent runway incursions and ensure that aircraft maintain the proper distances and separation while approaching and landing on the runway.

While other conditions such as poor weather or being on final approach may also influence procedural changes, the ILS Hold Short rule is explicitly tied to visibility parameters. This focus helps ensure that the required separation between arriving and departing aircraft is maintained in critical phases of flight operation when visibility is limited.