House Bill 466 amends Tennessee Code Annotated, Title 68, Chapter 29, Part 1, 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 original effective date of July 1, 2025, has been amended to take effect immediately upon becoming law. This change emphasizes the urgency of implementing the new supervisory requirements for medical laboratories in Tennessee.