The International Association of Insurance Supervisor (IAIS) has adopted six supervisory papers (papers) on solvency assessment as part of its efforts to incorporate lessons learnt from the recent market instability into its work. The IAIS aims to use the papers, and other materials, in developing a comprehensive package on insurer solvency assessment and its setting standards work more generally. The papers identify key features which supervisors should consider incorporating into their solvency regimes in order to establish and maintain well-regulated insurance industries. The papers ultimately aim to enhance and improve transparency, comparability and convergence of international efforts to assess insurer solvency.