Senate Bill 527 amends Tennessee Code Annotated, Title 43, Chapter 8, by introducing a new section that provides liability protections for manufacturers or sellers of pesticides. Specifically, the bill states that if a pesticide is registered with the commissioner and bears a label approved by the Environmental Protection Agency (EPA) under the federal Insecticide, Fungicide, and Rodenticide Act (FIFRA), the manufacturer or seller cannot be held liable in civil actions related to the pesticide's labeling. This includes products liability actions that allege a failure to warn, as long as the pesticide was compliant at the time of sale.

However, the bill clarifies that these protections do not apply if the pesticide was manufactured or sold in violation of Tennessee law or FIFRA regulations. The act is set to take effect immediately upon becoming law, emphasizing the importance of public welfare in its implementation.