The Code of Federal Regulations is a codification of the general and permanent rules published in the Federal Register by the Executive departments and agencies of the United States Federal Government. Official United States Federal Government edition. 20 CFR Parts 1-399 covers Federal Employees Compensation Act, Railroad Retirement Act, Annuities, Sick Leave, Railroad Retirement Board, Workers Compensation, and Emergency Regulations, and more. Keywords: 20 CFR Parts 1 to 399; 20 CFR Parts 1-399; CFR 20 Parts 1-399; cfr 20 parts 1-399; cfr 20 parts 1 to 399; Disability Programs; disability programs; Railroad Retirement Act; railroad retirement act; Workers Compensation; workers compensation; Workers' Compensation; workers' compensation; Unemployment Insurance; unemployment insurance; Railroad Unemployment Insurance Act; railroad unemployment insurance act; Social Security; social security; United States Department of Labor; Department of Labor; labor department; Officer of Workers' Compensation; Office of Workers Compensation."