The CAMELS rating system is used by US regulators to evaluate the overall condition of banks based on their Capital adequacy, Asset quality, Management, Earnings, Liquidity, and Sensitivity to market risk. It rates banks on a scale of 1 to 5 based on an analysis of their financial statements and on-site examinations, with 1 being the strongest. The ratings are used to determine a bank's stability and identify weaknesses as well as allocate supervisory resources.