Federation of American Scientists Free Alongside Ship Foreign Agricultural Service Fetal Alcohol Syndrome Facility Associated Signaling Frequency Assignment Subcommittee Flow Accounting Server Flow Admission Service Federal Acquisition Service Financial Accounting Standard Frame Alignment Signal Freely Associated States Facility Associated Signalling Financial Accounting System Flame Absorption Spectroscopy Fuels Automated System Fallout Assessment System Family Attitude Scale fatty acid synthetase fetal akinesia sequence Fieldbus Access Sublayer Final Approach Speed final assembly schedule Financial Accounting Standards fire alarm system Flight Analysis System foetal alcohol syndrome for a second Force Accounting System Forces Accounting System