What must be completed before a propane container can be refilled?

Before a propane container can be refilled, it is essential that an inspection is completed. This inspection ensures that the cylinder is safe for use, free from damage, and in compliance with safety regulations. It involves checking the condition of the valve, looking for any signs of corrosion or leaks, and ensuring that the container is within the service life established by regulations.

If the container does not pass the inspection, it cannot be refilled until any necessary repairs or maintenance are performed. This prioritization of safety is crucial, as refilling an unsafe container can lead to dangerous situations, including leaks or explosions.

The other options, while important in their own right, do not directly precede the refilling process as a mandatory requirement. A service record, cleaning, and labeling have their roles in the overall maintenance and regulation of propane containers, but the primary and immediate step before refilling is ensuring that the container has been thoroughly inspected to confirm its safety and compliance with safety standards.