The FAIRR Act amends federal financial oversight laws to address risks posed by artificial intelligence in the financial sector. The Financial Stability Oversight Council must coordinate with member agencies to research AI use by financial institutions, identify threats to financial system stability from AI technologies like deepfakes and autonomous agents, and submit a detailed report to Congress within 180 days with recommendations for regulatory gaps. The bill also requires the Securities and Exchange Commission to establish specific rules within 180 days that impose governance requirements on brokers, dealers, and other securities market participants regarding their use of AI systems, including testing, oversight, and monitoring procedures. Additionally, the legislation expands federal regulators' authority to oversee third-party AI service providers used by financial institutions and requires entities to notify regulators of new service relationships within 30 days. The bill includes no new direct funding but directs existing regulatory agencies to conduct research and rulemaking activities related to AI oversight in financial markets.