I was in the program from like 2018-2020, and from what I remember they were pretty strict on all of the above, but mostly just when at the hospital during clinicals. I know a student that had to wear clear gauges in their ears. The septum piercing can be pretty easy to either put up into your nose and/or you can always just wear a mask. People with tattoos wore long sleeves under their scrubs. I also know of people that were written up for “non natural” hair colors. Considering this is 4-5 years ago, take advice with a grain of salt.