I am not sure how you can define a class/training room is legal or not. You can basically gain the SAP knowledge from Book or other self-study material. There are lots of books and online training classes available now since SAP training class is very expensive. You can add those self-study/training onto your vitae/resume if you really understand the in/out of SAP.
Please check my provile for one of those CBT resources. Good luck and it will be highly worthwhile to learn SAP.