Senate Bill 1947, also known as House Bill 2166, amends Tennessee Code Annotated, Title 68, Chapter 32, by introducing a new section that outlines regulations for autologous and directed blood donations. The bill defines key terms such as "autologous blood donation," "blood bank," "blood donation," "directed blood donation," and "physician." It mandates that blood banks comply with a physician's order for these types of donations, ensuring that all donations adhere to federal and state eligibility, testing, labeling, screening, storage, and compatibility requirements. Additionally, blood banks and hospitals are permitted to charge reasonable fees to cover administrative costs associated with facilitating these donations.

The bill also stipulates that hospitals must allow patients scheduled for medical procedures to make autologous or directed blood donations when ordered by a physician, with the caveat that hospitals can refuse such donations only if they are medically contraindicated or do not meet safety standards. Importantly, the legislation emphasizes that it does not permit any waivers of existing safety, testing, or compatibility requirements under federal or state law. The act is set to take effect on July 1, 2026.