A recent report from Deloitte asserts the importance of actuarial modeling to insurers' ability to effectively underwrite, as well as the importance of an overarching governance policy to maintain continuity. The research indicated that U.S. insurers lag their international counterparts when it comes to formal governance by 25 percenthalf of U.S. insurers use formal governance to drive actuarial controls, compared to 75 percent of non-U.S.-owned insurers. The following 10 leading practices were culled from survey results and follow-up discussion.