Recent updates to the Lead and Copper Rule Improvements (LCRI) elevate the need for utilities to consider proactive management of corrosion within distribution systems of all sizes. This presentation provides a comprehensive overview of LCRI regulatory requirements related to Corrosion Control Treatment (CCT), along with operational, and practical considerations associated with available corrosion-control strategies. A summary of Louisville Water’s approach to proactive corrosion control is included. The revised regulatory landscape introduces more stringent action levels, lower Practical Quantitation Limits (PQLs), expanded sampling protocols, and new expectations for all water systems. Action Level exceedances, the presence of lead service lines (LSLs), and 90th percentile exceedances above 5 ppb now trigger mandatory Optimal Corrosion Control Treatment (OCCT) studies for many systems. Key parameters such as pH, alkalinity, dissolved inorganic carbon (DIC), and system specific indicators influence a utility’s approach to CCT compliance and optimization. This presentation delineates specific regulatory pathways for large, medium, and small systems in KY and TN, detailing timelines for studies, treatment installation, and required water-quality parameter (WQP) monitoring. Additional attention is given to non LSL sources of lead—including leaded solder, brass, and galvanized materials – where galvanic corrosion mechanisms and localized water-quality gradients play a prominent role. Factors such as chloride, sulfate, the chloride to sulfate mass ratio (CSMR), and calcium interactions influence corrosion rates and require system specific evaluation. Broader water-chemistry trends, such as increasing chloride levels due to road salt, fertilizer use, or treatment chemical selection, have important implications for long term asset integrity. Ultimately, the presentation reinforces that corrosion control is multifaceted and deeply system dependent. The optimal approach for one utility may be impractical or infeasible for another. However, all water systems are encouraged to anticipate regulatory changes, evaluate potential impacts, and adopt forward looking strategies to ensure sustained protection of public health.