Basel III is a global regulatory framework established by the Basel Committee on Banking Supervision to strengthen the regulation, supervision, and risk management of banks. It builds upon the previous Basel II guidelines, introducing more stringent capital requirements, a leverage ratio, and liquidity standards to enhance the banking sector's resilience against financial crises. The framework aims to promote stability in the financial system by ensuring that banks maintain sufficient capital buffers and manage risks effectively. Basel III implementation began in 2013, with full compliance expected by 2023.