The performance conditions relating to the works, supplies or services which are the subject of the contract, in any respect whatsoever and at any stage of their life cycle, are deemed to be linked to the subject of the contract. In particular, they may relate to a specific production, supply or marketing process or to a specific process linked to another stage of the life cycle, even when these elements are not apparent from the intrinsic qualities of the works, supplies or services.
The life cycle is the set of successive or interdependent stages, including research and development to be carried out, production, marketing and its conditions, transport, use and maintenance, throughout the life of the product, work or service, from the acquisition of raw materials or the production of resources to disposal, restoration and the end of use of the product, work or service.