In what water temperature range should exposure suits be worn at crew discretion?

Exposure suits should be worn at crew discretion when water temperatures range from 50 to 60 degrees Fahrenheit. This temperature range poses a significant risk of hypothermia for individuals who are immersed in the water for extended periods. The use of exposure suits provides insulation and helps retain body heat, thus reducing the likelihood of hypothermia.

In temperatures below 50 degrees, the need for exposure suits becomes more critical, and crew members would typically be mandated to wear them rather than just at discretion. Conversely, above 60 degrees, the risk of hypothermia lessens, and exposure suits are generally not required for safety, as individuals are less likely to experience rapid heat loss in these warmer waters. Understanding these temperature guidelines is essential for ensuring the safety and comfort of crew members during waterborne operations.