First time getting notified of a urinalysis in the Air Force, after so many years in the Navy, was an interesting interaction.
I get a random phone call in the morning
Random GS civilian - "sir, you have to come to office 6969 and bring your id"
Me - "ok, no problem, what for?
GS - "i can't tell you, you have to come here"
Me - "ok, if you won't tell me, I'm not coming. have a good day"
I ended up having the urinalysis monitor come to my office and explain it to me. He was pissed but I told him I don't answer to random GS civlians that won't explain what they want. Still had to give the sample but the monitor ended up apologzing to me about it.
I still don't understand the AF formality of it all. The Navy, you'd get a phone call or an email and it was essentially "hey man, go pee by the end of the day".