Online Specimen Tracking (OST) is a regulatory requirement (17 CCR Ā§ 6506) that helps ensure all babies born in California have the best possible start in life. OST is accessed via the California Department of Public Health Screening Information System (SIS).
Hospitals and midwives (facilities) are required to access SIS within 7 days of life to verify that newborn screening specimens are received by a California Newborn Screening Program laboratory. If a specimen has not been received, it is reported as a missing specimen and an investigation is conducted to locate the specimen.