Public health; prohibiting certain vaccination of an infant without prior written informed consent. Effective date.

SB 879 requires health care providers to obtain written consent from a parent or guardian before vaccinating an infant (including for Hepatitis B), explaining associated risks. It makes such vaccinations voluntary and "opt-in only," prohibiting providers from implying consent is required. The law directly affects infants receiving specific vaccines and their parents or legal guardians. It takes effect on November 1, 2025, and codifies these requirements in Oklahoma law.