During utility stock investment research and due diligence, it is important for investors to appreciate the state PUC regulatory environment where their utilities operate. However, determining individual state PUC policies and their impact on the utilities servicing their populace is a difficult task for retail investors. More than 10 years ago, I discovered a little-known tool offered by Standard and Poor's Credit analysis titled "US Utility Regulatory Environment Assessment". It has since mutated into what is now known as the "State Commission Rankings" offered by the Regulatory Research Association RRA arm of S&P Global Intelligence