Section 4734 Of Chapter 4. Duties Of Health Care Providers From California Probate Code >> Division 4.7. >> Part 2. >> Chapter 4.

. (a) A health care provider may decline to comply with an individual health care instruction or health care decision for reasons of conscience.
  (b) A health care institution may decline to comply with an individual health care instruction or health care decision if the instruction or decision is contrary to a policy of the institution that is expressly based on reasons of conscience and if the policy was timely communicated to the patient or to a person then authorized to make health care decisions for the patient.