In the United States, national abortion reports are compiled and published by the U.S. Centers for Disease Control and Prevention (CDC). States voluntarily aggregate and share their data to be included in the CDC’s annual reports. Some states, including California, Maryland, and New Hampshire, have chosen not to participate. Consequently, the CDC reports are incomplete. National reporting is also out-of-date, with the most recent national abortion surveillance report containing data from 2015. To provide a more complete and current view of abortion in the United States, the Charlotte Lozier Institute reviews state-level reporting as it becomes available and publishes state-specific abortion reporting summaries. Key publications outlining the problems with the national abortion reporting system and summarizing national trends are available below.