This text is a comprehensive treatment of all aspects of group insurance in the United States and Canada, both life and health, with emphasis on the actuarial aspects of this important field of insurance. The Fifth Edition has been updated for the industry and regulatory changes which have occurred since 2003. Of particular note is a new chapter addressing medicare related coverages. This text is listed on the Course of Reading for SOA fellowship study in the Group Insurance specialty, and the Fundamentals of Actuarial Practice Course of the Society of Actuaries.