Final answer:
The operator is required to actuate all emergency discharge control devices when there is a need to discharge the cargo quickly and safely in case of an emergency or during maintenance or repairs on the tank. This ensures that the cargo is contained within the tank and prevents any accidental leaks or spills.
Step-by-step explanation:
According to federal regulations in the US, the operator is required to actuate all emergency discharge control devices designed to close the internal self-closing stop valve on a cargo tank in service when there is a need to discharge the cargo quickly and safely in case of an emergency or when performing maintenance or repairs on the tank. This ensures that the cargo is contained within the tank and prevents any accidental leaks or spills.
US, the operator is required to actuate all emergency discharge control devices designed to close the internal self-closing stop valve on a cargo tank in service when there is a need to discharge the cargo quickly and safely in case of an emergency or when performing maintenance or repairs on the tank. This ensures that the cargo is contained within the tank and prevents any accidental leaks or spills.