It is well established that, in order to be eligible for HUBZone certification or recertification, one of the requirements is that 35% of a company’s employees must reside in a HUBZone. That part is (relatively) straightforward. But, as we all know, employees might come and go at any time. This raises a few questions about what the requirement is when a company is preparing to bid on contracts as well as when performing them. We explore this question here.