Final answer:
Portable refillable tanks or containers shipping CFC or HCFC refrigerants must meet the Department of Transportation (DOT) standards. They must adhere to safety regulations specifically designed for the transport of hazardous materials. The correct answer to the student's question is (A) Department of Transportation.
Step-by-step explanation:
Portable refillable tanks or containers used to ship CFC (chlorofluorocarbon) or HCFC (hydrochlorofluorocarbon) refrigerants obtained with recovery equipment must meet the standard(s) set by the Department of Transportation (DOT). The containers must adhere to safety regulations to ensure the safe transport of hazardous materials, including CFCs and HCFCs, such as R-12 (dichlorodifluoromethane), HCFC-22, HCFC-123, HCFC-124, and others.
The Community Right-to-Know Act involves the reporting of the presence of hazardous chemicals, providing information to communities and local governments for planning purposes. While relevant for broader safety and information dissemination, it is not a standard for the physical containers themselves. Similarly, the Underwriters Laboratories (UL) provides certification of products for safety, but UL certification alone does not encompass all DOT requirements for shipping such refrigerants.
Therefore, the correct option to which standard must be met is solely (A) Department of Transportation.