UPS and its air operations hub are preparing for the day when it will need to deliver coronavirus vaccines across the globe.

There has been a push in recent years for cellular and genetic therapies that involve live cells. This has created a growing need for “deep-frozen storage.” It looks like the coming surge for Covid-19 vaccines will require deep-frozen too.

UPS is building its “freezer farm” at the South Louisville facility. The building will feature 300 ultra-low temperature refrigeration units, each holding 48,000 vials of vaccines. UPS spokesperson Wes Sheeler called this the first goal for companies working with Operation Warp Speed, the White House-led partnership for getting its partners ready to distribute vaccines by Nov. 1.