Which type of vessels are required to have a marine radio to communicate with bridges?

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The requirement for certain vessels to have a marine radio for communication with bridges is primarily based on their size and the nature of their operation. Power-driven vessels over 20 meters (approximately 65.6 feet) are mandated to carry a marine radio to ensure effective communication, particularly in busy waterways where they may interact with bridge operations.

This communication capability is crucial for safety and navigation, as it allows these larger vessels to receive instructions, report their status, and coordinate passage through areas with movable bridges. The size of these vessels often places them in more congested traffic conditions, where direct communication with infrastructure is essential to avoid accidents or delays.

Vessels such as sailboats over 25 feet may have specific communication needs, but that requirement does not extend to all of them, particularly if they are not considered power-driven. Recreational vessels under 20 meters generally do not have the same requirement, as their smaller size often allows for more straightforward navigation without the necessity for constant communication with bridges. Fishing vessels, regardless of size, are subject to specific regulations, but they do not universally require a marine radio for bridge communication in the same way that larger power-driven vessels do.

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