Detail the steps to take when discovering undeclared or misdeclared dangerous goods during cargo loading.

Discovering undeclared or misdeclared dangerous goods during cargo loading requires immediate action to ensure safety and compliance, involving stopping the loading process, isolating the suspect cargo, notifying the relevant authorities, and thoroughly investigating the situation. The first step is to immediately stop all loading operations in the vicinity of the suspect cargo to prevent any further movement or handling that could exacerbate the hazard. The suspect cargo must then be isolated in a safe and secure area, away from other cargo and personnel. The relevant authorities, including the port authority, the ship's master, and the local competent authority for dangerous goods, must be notified immediately. A detailed description of the suspect cargo, including any identifying marks, labels, or packaging information, should be provided. A thorough investigation must be conducted to determine the nature and extent of the hazard posed by the undeclared or misdeclared dangerous goods. This may involve consulting with experts in hazardous materials identification and assessment. Based on the investigation, appropriate measures must be taken to ensure the safe handling, stowage, and transport of the dangerous goods. This may involve repackaging the goods, providing proper labeling and documentation, and adjusting the stowage plan to comply with the IMDG Code. Finally, a detailed report of the incident, including the findings of the investigation and the corrective actions taken, must be submitted to the relevant authorities. Continuing loading operations should only resume after the authorities have approved the corrective actions and confirmed that the situation is under control. These steps prevent accidents, protects personnel, and maintains regulatory compliance.