Cosmetologists, nail technicians, instructors and aestheticians are facing new rules that go into effect in mid-September. Salon owners, schools and individual cosmetologists who rely on their professional license to make a living can expect not only stricter guidelines, but greater scrutiny when the new rules take effect on September 13. State regulators have added more than 500 new rules, and are looking to increase the number of inspectors who drop in on salons to look for potential rule violations.