Regulation 2(1)
| Classes | Groups | Subgroups and items | Descriptions |
|---|---|---|---|
| 50 | BUILDING AND CIVIL ENGINEERING | ||
| 500 | General building and civil engineering work (without any particular specialisation) and demolition work | ||
| 500.1 | General building and civil engineering work (without any particular specialisation) | ||
| 500.2 | Demolition work | ||
| 501 | Construction of flats, office blocks, hospitals and other buildings, both residential and non-residential | ||
| 501.1 | General building contractors | ||
| 501.2 | Roofing | ||
| 501.3 | Construction of chimneys, kilns and furnaces | ||
| 501.4 | Waterproofing and damp-proofing | ||
| 501.5 | Restoration and maintenance of outside walls (repainting, cleaning, etc.) | ||
| 501.6 | Erection and dismantlement of scaffolding | ||
| 501.7 | Other specialised activities relating to construction work (including carpentry) | ||
| 502 | Civil engineering: construction of roads, bridges, railways, etc. | ||
| 502.1 | General civil engineering work | ||
| 502.2 | Earth-moving (navvying) | ||
| 502.3 | Construction of bridges, tunnels and shafts, drilling | ||
| 502.4 | Hydraulic engineering (rivers, canals, harbours, flows, locks and dams) | ||
| 502.5 | Road-building (including specialised construction of airports and runways) | ||
| 502.6 | Specialised construction work relating to water (i.e. to irrigation, land drainage, water supply, sewage disposal, sewerage, etc.) | ||
| 502.7 | Specialised activities in other areas of civil engineering | ||
| 503 | Installation (fittings and fixtures) | ||
| 503.1 | General installation work | ||
| 503.2 | Gas fitting and plumbing, and the installation of sanitary equipment | ||
| 503.3 | Installation of heating and ventilating apparatus (central heating, air conditioning, ventilation) | ||
| 503.4 | Sound and heat insulation, insulation against vibration | ||
| 503.5 | Electrical fittings | ||
| 503.6 | Installation of aerials, lightning conductors, telephones, etc. | ||
| 504 | Building completion work | ||
| 504.1 | General building completion work | ||
| 504.2 | Plastering | ||
| 504.3 | Joinery, primarily engaged in on the site assembly and/or installation (including the laying of parquet flooring) | ||
| 504.4 | Painting, glazing, paper hanging | ||
| 504.5 | Tiling and otherwise covering floors and walls | ||
| 504.6 | Other building completion work (putting in fireplaces, etc.) |