A joint Ad Hoc Committee of the American Society of Lipo-Suction Surgery (ASLSS) and the American Academy of Cosmetic Surgery (AACS) was formed to create the following guidelines for liposuction surgery. The members of this committee include: Robert F. Jackson, MD; Paul J. Carniol, MD; Claude H. Crockett Jr, MD; Richard L. Dolsky, MD; C. William Hanke, MD; Edward B. Lack, MD; Marc S. Leventhal, MD; and Patrick G. McMenamin, MD. These revised guidelines were presented to and passed by the AACS and ASLSS Board of Trustees on February 8, 2000.