# The Public Works Contracts Regulations 1991, Schedule 1: ACTIVITIES CONSTITUTING WORKS


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.)

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Source: https://www.legislation.gov.uk/uksi/1991/2680/schedule/1 (the official version)
Page: https://openlegislation.uk/public-works-contracts-regulations-1991/schedule-1
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.