BS 5975-1:2024 - Book - Page 39
BRITISH STANDARD
BS 5975‑1:2024
8.3.2.3
The PC’s TWC should be responsible to the PC’s DI for the implementation of the PC’s procedure.
8.3.2.4
The appointment of the PC’s TWC should be confirmed in writing and the post formally accepted.
Copies of the appointment confirmation document should be provided to the site, the PC’s DI, the
client and the principal designer as a minimum.
8.3.2.5
Where a particularly technically or logistically complex project is split into more than one
well‑defined area and a PC’s TWC is appointed for each area, each individual PC’s TWC should be
responsible for all the temporary works in the area allocated, irrespective of which organization
carries out the temporary works in the area. Only one PC’s TWC should be responsible for a specific
area. One of these individuals should be appointed as lead PC’s TWC to manage the interfaces
between the areas.
NOTE On a contract such as a motorway or railway the project could be split into sections, having a PC’s TWC for
each section, provided that the interface is clearly established. It is extremely rare that a building project would
justify more than one PC’s TWC.
8.3.3
8.3.3.1
Appointment of the TWC (not appointed by the PC)
Where either the PC has appointed a subcontractor to manage and/or design temporary works, or a
client has appointed a contractor other than the PC, a TWC should be appointed by the DI of the
organization for whose work the TWC is responsible. The TWC should be either an employee of that
organization, or be an employee of an organization contracted to provide the services of a TWC on
behalf of the contractor for all the organization’s temporary works on the site/project area. The TWC
may be proposed by a contracts director/manager or senior manager, but the DI, for whom the TWC
is employed, should be satisfied that the proposed TWC has the relevant competence, as outlined in
4.2.1, before making the appointment.
NOTE Where the appointment of the organization does not involve management or design of the temporary
works, no TWC is required as the PC’s TWC is responsible for overall coordination.
8.3.3.2
The TWC should be competent and have both relevant up‑to‑date training and the necessary skills,
knowledge and experience appropriate to the complexity of the project and anticipated temporary
works. As the TWC is taking on management roles similar to those of the PC’s TWC, the training and
experience should be appropriate to their duties.
8.3.3.3
The appointment of the TWC should be confirmed in writing and the post formally accepted. The
confirmation should include the name of the PC’s TWC. Copies of the appointment confirmation
document should be provided to the PC’s DI, the PC’s TWC and the principal designer as a minimum.
8.3.3.4
Where the appointment gives the TWC the authority to carry out management tasks, that authority
should include stopping the work if it is not being carried out satisfactorily.
8.3.4
Appointment of the TWS
8.3.4.1
On larger sites or where the site manager or project manager considers it necessary, or where the
PC’s TWC or TWC requests assistance, one or more TWSs should be appointed.
8.3.4.2
The TWS should be appointed by the organization for whose work the TWS is responsible (see Figure 2
and Figure 3 for lines of responsibility). The TWS should be an employee of the organization.
Copies of the appointment confirmation document should be provided to the PC’s TWC with any limits
of authority recorded.
8.3.4.3
The TWS should have relevant up‑to‑date training and the necessary skills, knowledge and
experience appropriate to the complexity of the project. The person appointed should be aware of the
limitations of their knowledge and have the language and literacy level to raise any query with more
knowledgeable people.
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