Does it involve work on bridges, tunnels, viaducts, aqueducts, water towers, pylons, or factory chimneys?
Does it involve the assembly of installations, in particular production, transformation, transport, and processing installations, and interventions on these installations, excluding the works mentioned in question 1.
Clarification: If the assembly of or interventions on installations are accompanied by the installation of utility lines, preceded by excavation works, earthworks, foundation and reinforcement works, or if they are associated with foundations, concrete and masonry works, and works on the load-bearing structures, then you should answer NO here.