| Official title | Construction of bridges and tunnels | Construction of railways and underground railways | Electrical installation | Architectural and engineering activities and related technical consultancy | Engineering activities and related technical consultancy |
| Plain-language summary | Use this class for construction of bridges and tunnels when the main activity includes Construction of bridges (e.g. for elevated motorways and railways) and Construction of tunnels, including those for motorways and railways. Check exclusions and nearby codes before applying it to a mixed activity. | Use this class for construction of railways and underground railways when the main activity includes Construction of railways, underground railways and subways and Construction of electricity overhead lines and conductor rails for railways. Check exclusions and nearby codes before applying it to a mixed activity. | Use this class for electrical installation when the main activity includes Installation of: and Electrical wiring and fittings. Check exclusions and nearby codes before applying it to a mixed activity. | Use this group for architectural and engineering activities and related technical consultancy when the main activity includes Architectural activities and Engineering activities and related technical consultancy. 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. |
| Official inclusions | - - construction of bridges (e.g. for elevated motorways and railways)
- - construction of tunnels, including those for motorways and railways
| - - construction of railways, underground railways and subways
- - construction of electricity overhead lines and conductor rails for railways
| - - This class includes the installation, repair and maintenance of electrical systems in all types of buildings and civil engineering structures.
- - installation of:
- - electrical wiring and fittings
- - telecommunication wiring
- - computer network and cable television wiring, including fibre-optic
| - - This group includes the provision of architectural services, engineering services, drafting services, building inspection services, surveying and mapping services, and so on.
| - - 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:
- - machinery, industrial processes and industrial plant
- - projects involving civil engineering, hydraulic engineering, traffic engineering
- - water management projects
- - nature-based infrastructure
|
| Official exclusions | - - construction of railways, see 42.12
- - installation of lighting and electrical signals, see 43.21
- - project management for construction, see 71.1
- - engineering activities, see 71.12
| - - installation of lighting and electrical signals, see 43.21
- - project management for construction, see 71.1
- - engineering activities, see 71.12
| - - construction of distribution lines for electricity and telecommunication, see 42.22
- - construction of solar and wind energy farms, see 42.22
- - construction of stations for distribution of electricity (e.g. for electric vehicles), see 42.22
- - installation of lightning conductors, see 43.24
- - monitoring and remote monitoring of electronic security systems (e.g. burglar alarms and fire alarms, including their installation and maintenance), see 80.09
| Not stated separately in available source data | - - test drilling in connection with mining operations, see 09.10, 09.90
- - software publishing, see 58.2
- - development and programming of software, see 62.10
- - activities of computer consultants, see 62.20
- - development of building projects for residential and non-residential buildings, for later sale, see 68.12
|
| Typical examples | - - Construction of bridges (e.g. for elevated motorways and railways)
- - Construction of tunnels, including those for motorways and railways
| - - Construction of railways, underground railways and subways
- - Construction of electricity overhead lines and conductor rails for railways
| - - Installation of:
- - Electrical wiring and fittings
- - Telecommunication wiring
- - Computer network and cable television wiring, including fibre-optic
| - - Architectural activities
- - Engineering activities and related technical consultancy
| - - 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:
- - Machinery, industrial processes and industrial plant
- - Projects involving civil engineering, hydraulic engineering, traffic engineering
- - Water management projects
|
| Common reasons to choose this code | - - construction of bridges (e.g. for elevated motorways and railways)
- - construction of tunnels, including those for motorways and railways
| - - construction of railways, underground railways and subways
- - construction of electricity overhead lines and conductor rails for railways
| - - This class includes the installation, repair and maintenance of electrical systems in all types of buildings and civil engineering structures.
- - installation of:
- - electrical wiring and fittings
- - telecommunication wiring
| - - This group includes the provision of architectural services, engineering services, drafting services, building inspection services, surveying and mapping services, and so on.
| - - 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:
- - machinery, industrial processes and industrial plant
- - projects involving civil engineering, hydraulic engineering, traffic engineering
- - water management projects
|
| Common reasons not to choose this code | - - construction of railways, see 42.12
- - installation of lighting and electrical signals, see 43.21
- - project management for construction, see 71.1
- - engineering activities, see 71.12
| - - installation of lighting and electrical signals, see 43.21
- - project management for construction, see 71.1
- - engineering activities, see 71.12
| - - construction of distribution lines for electricity and telecommunication, see 42.22
- - construction of solar and wind energy farms, see 42.22
- - construction of stations for distribution of electricity (e.g. for electric vehicles), see 42.22
- - installation of lightning conductors, see 43.24
| - - Activities primarily classified as technical testing and analysis
| - - test drilling in connection with mining operations, see 09.10, 09.90
- - software publishing, see 58.2
- - development and programming of software, see 62.10
- - activities of computer consultants, see 62.20
|
| Usually not this code | - - Construction of railways
- - Installation of lighting and electrical signals
- - Project management for construction
- - Engineering activities
| - - Installation of lighting and electrical signals
- - Project management for construction
- - Engineering activities
| - - Construction of distribution lines for electricity and telecommunication
- - Construction of solar and wind energy farms
- - Construction of stations for distribution of electricity (e.g. for electric vehicles)
- - Installation of lightning conductors
| - - Activities primarily classified as technical testing and analysis
| - - Test drilling in connection with mining operations
- - Software publishing
- - Development and programming of software
- - Activities of computer consultants
|
| Related codes | - - 42.12 Construction of railways and underground railways
- - 43.21 Electrical installation
- - 71.1 Architectural and engineering activities and related technical consultancy
- - 71.12 Engineering activities and related technical consultancy
- - 42.11 Construction of roads and motorways
- - 42.1 Construction of roads and railways
| - - 43.21 Electrical installation
- - 71.1 Architectural and engineering activities and related technical consultancy
- - 71.12 Engineering activities and related technical consultancy
- - 42.11 Construction of roads and motorways
- - 42.13 Construction of bridges and tunnels
- - 42.1 Construction of roads and railways
| - - 42.22 Construction of utility projects for electricity and telecommunications
- - 43.24 Other construction installation
- - 80.09 Security activities n.e.c.
- - 43.22 Plumbing, heat and air-conditioning installation
- - 43.23 Installation of insulation
- - 43.2 Electrical, plumbing and other construction installation activities
| - - 71.2 Technical testing and analysis
- - 71.11 Architectural activities
- - 71.12 Engineering activities and related technical consultancy
- - 71 Architectural and engineering activities; technical testing and analysis
| - - 09.10 Support activities for petroleum and natural gas extraction
- - 09.90 Support activities for other mining and quarrying
- - 58.2 Software publishing
- - 62.10 Computer programming activities
- - 62.20 Computer consultancy and computer facilities management activities
- - 68.12 Development of building projects
- - 71.20 Technical testing and analysis
- - 72.10 Research and experimental development on natural sciences and engineering
- - 74.1 Specialised design activities
- - 74.20 Photographic activities
- - 74.99 All other professional, scientific and technical activities n.e.c.
- - 71.11 Architectural activities
- - 71.1 Architectural and engineering activities and related technical consultancy
|
| Parent hierarchy | F CONSTRUCTION > 42 Civil engineering > 42.1 Construction of roads and railways > 42.13 Construction of bridges and tunnels | F CONSTRUCTION > 42 Civil engineering > 42.1 Construction of roads and railways > 42.12 Construction of railways and underground railways | F CONSTRUCTION > 43 Specialised construction activities > 43.2 Electrical, plumbing and other construction installation activities > 43.21 Electrical installation | N PROFESSIONAL, SCIENTIFIC AND TECHNICAL ACTIVITIES > 71 Architectural and engineering activities; technical testing and analysis > 71.1 Architectural and engineering activities and related technical consultancy | N PROFESSIONAL, SCIENTIFIC AND TECHNICAL ACTIVITIES > 71 Architectural and engineering activities; technical testing and analysis > 71.1 Architectural and engineering activities and related technical consultancy > 71.12 Engineering activities and related technical consultancy |
| Rev. 2 mapping | | | | | |
