The Society for Assisted Reproductive Technology (SART) is a nonprofit organization that was founded in 1985 with an initial goal of establishing a national registry of in vitro fertilization (IVF) procedures and outcomes. The purpose of the registry was to determine clinical effectiveness, safety, and quality of care. The Society for Assisted Reproductive Technology subsequently developed the SART Clinical Outcome Reporting System, perhaps the first such registry in the United States. In vitro fertilization clinic specific outcome data voluntarily were submitted to SART, combined into a national report, and published annually since 1988 (1).