On February 12, 2025, the Tennessee State Legislature introduced Senate Bill 395, a legislative measure aimed at regulating vehicle modifications, specifically concerning tire sizes on trucks and vehicles. The bill seeks to address safety concerns related to vehicle height and bumper regulations, which can be affected by the installation of oversized tires.

The primary provision of Senate Bill 395 stipulates that vehicle owners may not install tires with a diameter larger than that specified by the original equipment manufacturer. This regulation is intended to prevent modifications that could lead to violations of existing bumper height standards and frame specifications, which are crucial for ensuring vehicle safety and compliance with state regulations.

The bill has sparked notable discussions among lawmakers and stakeholders. Proponents argue that regulating tire sizes is essential for maintaining road safety and preventing accidents caused by improperly modified vehicles. They emphasize that oversized tires can alter a vehicle's center of gravity, potentially leading to dangerous driving conditions. Conversely, opponents of the bill raise concerns about personal freedoms and the rights of vehicle owners to customize their vehicles as they see fit. Some critics also argue that the bill may disproportionately affect truck enthusiasts and small businesses involved in vehicle modifications.

The economic implications of Senate Bill 395 could be significant, particularly for businesses that specialize in aftermarket vehicle parts and modifications. Should the bill pass, these businesses may face a decline in demand for oversized tires, which could impact their revenue and employment levels. Additionally, the bill's enforcement could lead to increased fines for non-compliance, as violations are classified as Class B misdemeanors, carrying a penalty of $250.

As the bill moves through the legislative process, its future remains uncertain. Experts suggest that the outcome will depend on the balance between safety concerns and individual rights, as well as the potential economic impact on the automotive aftermarket industry. The bill is set to take effect on July 1, 2025, if passed, marking a significant shift in how vehicle modifications are regulated in Tennessee. As discussions continue, stakeholders will be closely monitoring the developments surrounding this legislation, which could reshape the landscape of vehicle customization in the state.