So, what exactly is deemed "presence?" Apparently an Amazon distribution center in Texas was deemed "presence" a while back. On the other hand, surely Amazon

So, what exactly is deemed "presence?" Apparently an Amazon distribution center in Texas was deemed "presence" a while back. On the other hand, surely Amazon operates a fairly extensive network of data centers, warehouses, and other fixed-location logistical inputs in California? Is that "presence?" Where is the distinction lie?