The FBC Radiation Sign is a medium-sized, rectangular metal plaque with sharp, angular edges, embodying the brutalist architecture style of the game. It features a bold, black and yellow color scheme with high-contrast radiation symbols and text warning of hazardous materials, rendered in a clean, sans-serif font. The surface is slightly weathered with visible scratches and dents, suggesting exposure to the harsh environments within the game's setting, while maintaining a matte finish to reduce glare in the surreal, often dimly lit corridors of the Federal Bureau of Control.