Which statement is true regarding portable containers used to dispense drinking water?

The correct statement regarding portable containers used to dispense drinking water is that they must be capable of being tightly closed. This requirement ensures that the water remains clean and free from contamination. A tightly closed container prevents the introduction of dirt, bacteria, or other pollutants that could occur through open access. Additionally, it assists in maintaining the quality and safety of the drinking water during storage and transport.

Containers that can be tightly closed are also essential for maintaining proper hygiene standards in various environments, especially in places like construction sites or outdoor events where access to clean water is necessary. This feature is critical in preventing spillage and ensuring that the water remains uncontaminated until it is ready to be consumed.