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The restriction on the modification of the class and object of a public contract is the primary rule governing modifications and additions to the contract based on the public interest. Its purpose is to ensure that the objectives of public procurement are not altered, distorted, circumvented, or violated, along with its nature and the conditions agreed upon in the original contract.
To tackle this important task places us in the privileged position of uncovering what the law means by the class of a contract, an element that emerges as a necessary condition to assess whether the modification to the contract disrupts or alters its class and, in this case, its object as well.
