House Bill 466, also known as Senate Bill 1385, amends Tennessee Code Annotated, Title 68, by introducing a new requirement for medical laboratories. The bill mandates that each medical laboratory must have a medical laboratory supervisor available for consultations during all hours when tests are performed. However, it specifies that the supervisor is not required to be physically present on the laboratory premises.

Additionally, the bill's effective date has been modified. Originally set to take effect on July 1, 2025, the amended version now states that the act will take effect upon becoming law, emphasizing the urgency of the public welfare.