A:
It is not! The CDC does not recommend storage of any vaccine in a dormitory-style or bar-style, combined refrigerator/ freezer unit under any circumstances, even temporarily.
A dormitory-style refrigerator is defined by the CDC as a small combination freezer/refrigerator unit with one exterior door and an evaporator plate (cooling coil), which is usually located inside an icemaker compartment within the refrigerator. These units have exhibited severe temperature control and stability issues throughout the entire storage area.
Additionally, the CDC recommends monitoring temperature by using only a calibrated digital data logger with a current and valid certificate of calibration testing (also known as a Report of Calibration). Hope this helps.