On Jun. 10, 2026, the American College of Obstetricians & Gynecologists (ACOG) released its 2026 maternal immunization schedule. The new schedule is endorsed by 13 medical societies and health organizations and marks the first time ACOG has formally released an immunization schedule that differs from federal vaccine recommendations. ACOG’s new schedule will be an easily accessible resource for clinicians, public health agencies, and patients across the United States.

“Changing national recommendations coupled with rampant vaccine misinformation are resulting in confusion for both patients and health care professionals,” said ACOG President Camille A. Clare, MD, MPH, CPE, FACOG. “It is incredibly important for the public to have access to reliable, evidence-based information on maternal immunizations from a trusted source. ACOG is proud to be that source.”

The guidance was developed by ACOG’s Immunization, Infectious Disease, and Public Health Preparedness Expert Work Group and reflects ACOG’s continued commitment to developing vaccine guidance based on peer-reviewed scientific data and evidence-based medicine.

Clinicians are on the front lines of vaccine-related preventive care—assessing their patients’ vaccination status, evaluating risk factors for vaccine-preventable diseases, and recommending the needed vaccines. 

The American Academy of Pediatrics, the American Academy of Family Physicians, the National Association of Nurse Practitioners in Women’s Health, and the American College of Nurse-Midwives are among the 13 organizations that have endorsed ACOG’s 2026 maternal immunization guidance.