Federal Signal Corporation designs, manufactures, and supplies specialized vehicles, equipment, and signaling systems for municipal, governmental, industrial, and commercial customers worldwide through two main business segments. The Environmental Solutions Group produces street sweepers, sewer cleaning equipment, vacuum and hydro-excavation trucks, refuse collection vehicles, dump truck bodies, and related maintenance equipment sold through dealer networks and direct sales, along with aftermarket parts, repair, and rental services. The Safety and Security Systems Group manufactures vehicle lightbars, sirens, public warning systems, alarm systems, and industrial signaling equipment distributed through wholesalers, distributors, and direct sales channels to law enforcement, fire rescue, emergency services, and industrial facilities. The company operates manufacturing facilities globally and competes on product performance, technology, delivery speed, and service quality in both segments.