Construction of utility projects for fluids
What this code covers
Use this class for construction of utility projects for fluids when the main activity includes Construction of civil engineering structures for: and Long-distance, underwater and urban pipelines. Check exclusions and nearby codes before applying it to a mixed activity.
Official NACE Rev. 2.1 labels and explanatory notes are imported from the source dataset. Plain-language explanations are shown separately so readers can compare interpretation with the source text.
No child codes; this is a class-level code.
- This class includes the construction of utility distribution lines for the transport of fluids, including gas, and related buildings and structures that are integral part of these systems.
- construction of civil engineering structures for:
- long-distance, underwater and urban pipelines
- water mains and water lines
- installation of water and wastewater pipes in buildings, see 43.22
- project management activities related to civil engineering works, see 71.12
- camera inspections in wastewater, water and gas pipes, not associated with repair or installation, see 71.20
- Compare with 43.22, 71.12, 71.20 when the main activity overlaps another code.
- Check national equivalent caveats before using this code for local registration or filing workflows.
- If the main revenue activity appears in an exclusion, compare the alternative code before deciding.
Use this guide as classification support, not legal, tax, filing, or regulatory advice.
- - This class includes the construction of utility distribution lines for the transport of fluids, including gas, and related buildings and structures that are integral part of these systems.
- - construction of civil engineering structures for:
- - long-distance, underwater and urban pipelines
- - water mains and water lines
- - irrigation systems (canals)
- - reservoirs
- - construction of:
- - sewerage systems, including repair
- - sewage treatment and disposal plants
- - pumping stations
- - water well drilling
- - geothermal drilling
- - installation of water and wastewater pipes in buildings, see 43.22
- - project management activities related to civil engineering works, see 71.12
- - camera inspections in wastewater, water and gas pipes, not associated with repair or installation, see 71.20
- - Construction of civil engineering structures for:
- - Long-distance, underwater and urban pipelines
- - Water mains and water lines
- - Irrigation systems (canals)
- - Installation of water and wastewater pipes in buildings
- - Project management activities related to civil engineering works
- - Camera inspections in wastewater, water and gas pipes, not associated with repair or installation
What is NACE 42.21 used for?
Use NACE 42.21 for construction of utility projects for fluids when the main activity matches this scope: Use this class for construction of utility projects for fluids when the main activity includes Construction of civil engineering structures for: and Long-distance, underwater and urban pipelines. Check exclusions and nearby codes before applying it to a mixed activity.
What are typical examples for 42.21?
Typical examples include Construction of civil engineering structures for:, Long-distance, underwater and urban pipelines, and Water mains and water lines.
When might 42.21 not be the right code?
Review another code when the activity is closer to installation of water and wastewater pipes in buildings, see 43.22 and project management activities related to civil engineering works, see 71.12.
Which codes should I compare before choosing 42.21?
Compare 42.21 with 43.22 Plumbing, heat and air-conditioning installation, 71.12 Engineering activities and related technical consultancy, and 71.20 Technical testing and analysis when the activity description is ambiguous.
Use this class for plumbing, heat and air-conditioning installation when the main activity includes Installation, maintenance and repair of: and Heating systems (e.g. heat pumps, solar thermal collectors). Check exclusions and nearby codes before applying it to a mixed activity.
Use this class for engineering activities and related technical consultancy when the main activity includes Engineering design (i.e. applying physical laws and principles of engineering in the design of machines, materials, instruments, structures, processes and systems) and consulting activities for: and Machinery, industrial processes and industrial plant. Check exclusions and nearby codes before applying it to a mixed activity.
Use this class for technical testing and analysis when the main activity includes Performance of physical, chemical and other analytical testing of all types of materials and products and Acoustics and vibration testing. Check exclusions and nearby codes before applying it to a mixed activity.
Use this class for construction of utility projects for electricity and telecommunications when the main activity includes Construction of civil engineering structures for: and Long-distance and urban communication and power lines. Check exclusions and nearby codes before applying it to a mixed activity.
Use this group for the broader activity area of construction of utility projects, including Construction of utility projects for fluids and Construction of utility projects for electricity and telecommunications. Open the child codes when a more specific code is needed.
Rev. 2 code 42.21 maps to the same Rev. 2.1 class 42.21 Construction of utility projects for fluids.
Official close match imported from NACE Rev. 2.1.
Low operational impact is expected, but systems should still store the target Rev. 2.1 version explicitly.
Confirm the target version field and update references where Rev. 2.1 is required.