Which document outlines rules for signals and communications referenced in this material?

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Multiple Choice

Which document outlines rules for signals and communications referenced in this material?

Explanation:
Rules for signals and communications come from a dedicated rule document, not the Lifebooks. USOR Rule 104 is the official reference that defines how signals are interpreted, what actions crews must take, and the procedures for communicating between crew and dispatch (including when signals are unclear or defective). The Lifebooks cover other topics and procedures, but they do not establish the formal signaling and communications rules in the same authoritative way. So the best answer is USOR Rule 104.

Rules for signals and communications come from a dedicated rule document, not the Lifebooks. USOR Rule 104 is the official reference that defines how signals are interpreted, what actions crews must take, and the procedures for communicating between crew and dispatch (including when signals are unclear or defective). The Lifebooks cover other topics and procedures, but they do not establish the formal signaling and communications rules in the same authoritative way. So the best answer is USOR Rule 104.

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