I emailed my boss and lab coordinator directly to ask them when and where I am supposed to be on my start date. My assumption would be that you should show up at your start time at your boss' office or some place where someone can alert your boss that you have arrived in the department. I do not believe typical orientations exist anymore, and the orientation process will most likely be up to your boss. If you have that email or phone number, contact that person and ask them these questions. If you do not, you might want to ask HR for it. As for POPA, I came from out of state and had no possibility of coming here before starting to complete it, so I completed POPA documents online (I got the link for it from "DoNotReply@mayo.edu"), and I received orders for blood work and a urine drug screen via email from Employee Health that I was able to complete at a location near me -- Employee Health also called me to coordinate this. If your new start is approaching quickly and you are not getting the expected phone calls or emails, call Employee Health, HR, or your onboarding coordinator to follow up. My process may have been very different from what yours will be. Sometimes, you have to just wait, but the best thing to do is reach out and ask if things are unclear.