BEAUTY SALON BACKFLOW PREVENTER?

QUESTION THAT CAME FROM GEORGIA I only have one question. What type of backflow device need to be installed on a beauty salon that use hair chemicals??????????????????????? BACKFLOW COMMITTEE REPLY: Along with the backflow protection at the point-of-use as required by Plumbing Code, the site is considered a high hazard and an RP should be installed at the meter to protect your distribution system