Cylinders may not be filled if they are past their ____________ date.

• A. Inspection
• B. Requalification
• C. Manufacture date
• D. Test date

Answer: (B)

Cylinders must be requalified on a set schedule to verify their ability to safely contain propane. The requalification date is the deadline by which the cylinder must be tested again by a certified facility. If the cylinder is past that date, it cannot be filled until it has undergone the approved requalification process (typically a hydrostatic test and inspection). This safety check is what ensures the cylinder’s walls and connections are still sound and capable of withstanding pressure, reducing the risk of leaks or rupture. Other dates like manufacture date or general inspection dates don’t carry the same mandatory stopping-point for filling, and while the last test date shows when testing occurred, the rule emphasized here is the need to be within the requalification date to continue filling.