The FBC Biohazard Sign is a medium-sized, rectangular metal plaque with sharp, clean edges, embodying the brutalist architecture style of the game. It features a bold, black biohazard symbol centered on a rusted, weathered yellow background, with the letters 'FBC' stamped in a stark, sans-serif font above the symbol. The metal surface shows signs of wear, including scratches and slight dents, suggesting exposure to harsh conditions. The sign is designed to be mounted on walls or doors, serving as a warning in the surreal, bureaucratic environment of the Federal Bureau of Control.