FEGLI announces premium changes effective January 1st, 2012. Congress approved a cost of living increase for federal retirees. Human Resources and Security Specialists should use this tool to determine the correct investigation level for any covered position within the U.S. Federal Government. By John V. Berry, Esq., www.berrylegal.com As lawyers practicing in the area of security clearance law, we often receive questions from federal employees about the different types of security clearances that exist and.