Communication equipment must comply with international maritime safety standards, such as those set by SOLAS, to ensure operational safety and effective distress communication. Compliance testing involves checking communication systems such as GMDSS, VHF radios, and satellite phones to ensure they meet regulatory requirements. This includes testing signal strength, frequency ranges, and ensuring the equipment is capable of sending distress signals when needed. Regular compliance checks ensure the vessel remains operational, helps avoid fines, and protects lives by ensuring the systems are ready for emergencies.