Absence and Leave - Sick Leave (US Office of Personnel Management Regulation) (OPM) (2018 Edition) The Law Library presents the complete text of the Absence and Leave - Sick Leave (US Office of Personnel Management Regulation) (OPM) (2018 Edition). Updated as of May 29, 2018 The U.S. Office of Personnel Management is issuing final regulations on the use of sick leave and advanced sick leave for serious communicable diseases, including pandemic influenza when appropriate. We are also permitting employees to substitute up to 26 weeks of accrued or accumulated sick leave for unpaid Family and Medical Leave Act (FMLA) leave to care for a seriously injured or ill covered servicemember, as authorized under the National Defense Authorization Act for Fiscal Year 2008, including up to 30 days of advanced sick leave for this purpose. Finally, we are reorganizing the existing sick leave regulations to enhance reader understanding and administration of the program. This book contains: - The complete text of the Absence and Leave - Sick Leave (US Office of Personnel Management Regulation) (OPM) (2018 Edition) - A table of contents with the page number of each section