That really has been a guide line that some gyns have followed for a while. A lot of cervical cancer is caused by HPV and if, by the time you are 30, you haven't had any questionable PAPs for three years in a row, chances are, you aren't infected with HPV. Also, with the advent of vaccines, such as Gardasil, the incidence of cervical cancer will decrease significantly. If women have bleeding, other gyn health issues, weakened immunity, etc. then all bets are off and they should be screened as before. These new guidelines are actually based on SCIENCE, by physicians who work with and treat women, unlike the mammogram recommendations. They also found that some of the dysplasia resolved by itself and that by overdiagnosing it and treating it, they exposed young women to a weakened cervix which may result in cervical incompetency during pregnancy.