The term "container", as used in this Tariff, means a reusable shipping conveyance not less than ten (10) feet in length nor more than forty-five (45) feet in length, outside measurement, without chassis, especially designed to facilitate the carriage of goods by one or more modes of transport, and fitted with devices permitting its transfer from one mode of transport to another and constructed so as to enable the attachment of removable chassis for further transportation.
28 Miss. Code. R. § 1-01-12