Just wondering what it requires to add hair services.   We have a large enclosed room which we currently have spray tanning in.  I know hair services would be a much better use of the space but was wondering what it would take.  I want to do it all by the book and also have a hair/tanning place across the street so if I cut corners I would be reported too.

I've checked the PA site and contacted the state but never got a good answer. 

I would check your state web site.  I will bet you need someone at the salon who is responsible for the supervision of anyone else.  Now you may not need something special as the owners if you have that representative.  You also need a certain area to work in based on how many stations you have.  If you want 3 stations, you need X amount of floor space. I'd bet you end up having someone come check the place out before opening and then almost never see them again.  Make sure you also look because they will surely have equipment requirements as well.

Let us know if you move forward and what you find out.

You should think about it.  I would bet hair is a better place to be than tanning anymore and also more steady