There is currently no official standard for vaccine storage equipment in clinics, pharmacies, and other health providers’ offices. Michal Chojnacky of NIST’s Physical Measurement Laboratory, Sensor Science Division, is one of 30 members of a multi-institution committee run by NSF International whose goal is to define a set of performance standards for vaccine refrigerators, freezers, and other storage devices to help providers choose the best equipment for the job.