Final answer:
The shipper must fill the packaging for liquids to the correct level, ensure material compatibility and minimize leakage, and comply with all safety and legal regulations.
Step-by-step explanation:
When filling a packaging or receptacle for liquids, the shipper must ensure that it is filled to the correct level without overfilling, that the packaging is compatible with the liquid being shipped, and that any potential for leakage is minimized. The shipper must also confirm that the packaging meets all legal and safety requirements, which may include pressure testing, material compatibility checks, and proper labeling. Depending on the specific type of liquid and the transportation method, there may be additional regulations, such as those provided by the Department of Transportation (DOT) for hazardous materials.