With the term rental It identifies a rental contract between two parties, public or private, having as its object the use of a good.
A distinction is made between cold rental and hot rental: cold rental involves providing a good without any operator assigned to use it (this is a typical case that occurs on construction sites: company A enters into a cold rental contract with company B under which A supplies B with an excavator; it will be B's responsibility to find someone capable of operating the excavator); hot rental, on the other hand, involves the supply of a good and the personnel assigned to use it. In the example given, hot rental will involve the excavator and the excavator operator.