"Minimum Environmental Criteria" (referred to by the acronym CAM) are basically a set of requirements defined by the Ministry of Ecological Transition for the various stages of the procurement process, aimed at identifying the best supplies, services and works from an environmental perspective along the life cycle.

In the case of CAM for construction, these requirements apply to all design and building activities, including new constructions, renovations, and redevelopment of existing buildings, as well as the supply and/or replacement of windows and doors.

It is important to note that the decree formally applies to Public Administration projects. In such cases, public bodies must refer to CAM requirements when preparing tender documents and assign higher scores to proposals with lower environmental and health impacts.