This paper presents the safety features and describes the supporting analyses of the fusion breeder reactor concepts developed by the Fusion Breeder Program (FBP). The reactor and blanket concepts studied include suppressed and fast-fission blankets for both the tandem mirror and tokamak confinement schemes. Helium and lithium cooled blankets are considered. Most of the effort was directed toward a lithium cooled, fission-suppressed, tandem mirror blanket.1,2 Other concepts are evaluated with comparatively minimal analysis. Mobile fuel, which can be gravity dumped to separately cooled tanks, together with other design solutions and safety systems, can result in an acceptably safe fusion breeder.