What are the recommendations for use of HPV vaccine in people age 9 through 26 years?

The ACIP recommends that routine HPV vaccination be initiated for all children at age 11 or 12 years. ACIP notes that vaccination may be started at age 9 years, if preferred. There is no down-side to beginning the series at age 9, and this option gives more time to complete the series before the 13th birthday. Vaccination is also recommended for all people age 13 through 26 years who have not been vaccinated previously or who have not completed the vaccination series.