To ensure compliance with SOLAS regulation V/20, it is essential to conduct an annual performance test (APT) for Voyage Data Recorders (VDR) and Simplified Voyage Data Recorders (S-VDR). This test verifies the functionality and accuracy of the VDR system, including all its sensors.

Key Points of the Annual Performance Test:

• Authorised Testing: The test must be carried out by the manufacturer or an individual authorized by the manufacturer to ensure the highest standards of accuracy and reliability.
• Comprehensive Check: The APT includes a thorough inspection of the equipment's overall condition, verification of the power supply alarm, and confirmation of the acoustic beacon's functionality.
• Data Verification: The test ensures that all recorded data is accurate and can be successfully recovered. It also checks that the equipment remains operational even if external power is lost.
• Certification: Upon successful completion of the test, a certificate of compliance is issued. This certificate must be kept on board the vessel as proof of compliance.