Okla. Admin. Code § 310:667-13-5
All Oklahoma birthing hospitals shall implement a procedure to ensure that the hepatitis B vaccination is administered to all live infants within twelve hours of birth and recorded in the Oklahoma State Immunization Information System. A parent or guardian may refuse hepatitis B vaccination of their newborn on the grounds of medical reasons or that such vaccination conflicts with their religious tenets or personal beliefs. A refusal based on medical reasons shall include a statement in the medical record by a physician stating that the physical condition of the newborn is such that the vaccination would endanger the life or health of the child and that the child should be exempt from the vaccination requirement. A refusal based on the parent's or guardian's religious tenets or personal beliefs shall be documented in the newborn's medical record.
Okla. Admin. Code § 310:667-13-5