This class includes the construction of distribution lines and related buildings and structures that are integral part of these systems.

This class includes:
——construction of civil engineering constructions for: long-distance pipelines, communication and power lines; urban pipelines, urban communication and power lines; ancillary urban works; water main and line construction; irrigation systems (canals); reservoirs
——construction of: sewer systems, including repair; sewage disposal plants; pumping stations; power plants

This class also includes:
——water well drilling

This class excludes:
——project management activities related to civil engineering works, see 7110