New Joint Commission reqs??

I just changed jobs. Previously, I was at a Magnet teaching hosp. I am an ortho certified RN and my old hosp is JC certified for Total Joint Replacements (I was there 12 years and went through 3 recerts along with regular JC surveys) 

FF to new hosp, they are trying for JC TJR cert. We are having mock survey this month and was told that it is not allowed to wear a scrub cap that is not hosp issued. I work on in inpt floor, not peri-op or in the OR. 

I have never heard of this before. It was explained that it had something related to infection prevention (?) and how it's laundered (mind you there is no regulations about our scrubs). I was looking for some other things and found a thread on Reddit where some anesthesiologists getting dinged regarding facial hair and beard covers (they were having a good laugh about chest hair and eyebrow hair peeking out over glasses and scrubs LOL)

I explained why I where a scrub hat (I am all but bald on top of my head-I am the victim of thyroid and post-menopausal hormones) and asked what my options are. I can get paper scrub hats or if I could wear a bouffant over my scrub hat. 

Then, I asked about others-what about hijabs? Are they going to make them wear a paper hijab? What about other cultural head wear?  

I am thinking that this is come from OR protocols, not floor requirements. 

Anyone gone through a survey recently and heard of any of these issues? Specifically on the floor. TIA