A chassis is a specialized wheeled frame used in the logistics and transportation industry to move shipping containers over land. It is most commonly used in intermodal transport, allowing containers to be transferred seamlessly between ships, trucks, and rail systems. Designed to support heavy loads, a chassis is equipped with locking mechanisms, such as twist locks, to secure containers during transit and prevent shifting or accidents. Chassis units can be owned by trucking companies, leasing providers, shipping lines, or port authorities, and their availability often affects delivery schedules and port congestion. Regular inspection and maintenance of a chassis are essential to ensure road safety, protect cargo, and comply with transportation regulations. A faulty or unavailable chassis can lead to shipment delays, additional costs, or regulatory violations, making it a critical component of containerized freight movement.