Which of the following is true regarding 49 CFR, Part 220?

Answer: A — Personal devices must be turned off and stored out of sight

The statement regarding 49 CFR, Part 220, that indicates personal devices must be turned off and stored out of sight aligns with the regulations set forth to ensure safety in the railroad industry. This regulation is in place to prevent distractions that could potentially lead to accidents or safety breaches while employees are performing their duties. By mandating that personal devices be turned off and stored, it helps to maintain focus on the critical responsibilities employees have, particularly in high-stakes environments such as railroad operations. In contrast, the other statements do not accurately reflect the regulations. Railroad supplied devices have specific usage guidelines and may only be used during designated business purposes, not anytime, as this could lead to compliance issues. Additionally, supervisors' use of personal electronic devices while performing safety duties is restricted to safeguard against any potential distractions that could compromise safety. This overarching regulation reinforces that safety must always come first, which is not supported by the other statements.