What periodic inspection is required for compliance with GMDSS regulations?

The correct answer is based on the specific requirements set by the GMDSS (Global Maritime Distress and Safety System) regulations, which mandate that vessels equipped with GMDSS must undergo inspections to ensure that the safety and navigational equipment is functioning correctly.

According to these regulations, an inspection must be conducted at least once every 12 months. This can be performed by either the FCC or a licensed GMDSS Maintainer. This requirement ensures that vessels are compliant with international safety standards and that their communication equipment is reliable and operational in case of emergencies.

The chosen answer reflects the necessary compliance to maintain the safety of maritime operations, highlighting the importance of regular professional inspections by authorized personnel to verify the condition and operability of GMDSS equipment. Such inspections are crucial, as they help in maintaining high safety standards on vessels and ensuring that they are adequately prepared for any distress situations that may arise at sea.