What operational procedure ensures crew safety aboard the International Space Station (ISS) using a docked Soyuz?

Answer

A Soyuz capsule is always docked, serving as a lifeboat

When a crew is on the ISS, there is always a Soyuz capsule docked, ready to serve as a lifeboat in case the station itself faces an emergency or the next scheduled crew launch fails.

What operational procedure ensures crew safety aboard the International Space Station (ISS) using a docked Soyuz?
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