BS 5975 2019 Extract - Flipbook - Page 25
BRITISH STANDARD
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5.1.3
BS 5975:2019
The TWC or TWS, as appropriate, should issue a permit to proceed confirming the temporary
works have been erected in accordance with the certified design and any agreed revisions. See
11.2.3, 11.3.3 and 12.3.
Organizations involved in temporary works
5.1.3.1
There are many combinations of organizations that can be involved in temporary works. They can
include clients, management contractors, contractors, sub-contractors, utility authorities, service
suppliers (M&E), equipment suppliers, consultants and specialist contractors. Each have different
contractual arrangements from project to project but the over-arching principle is that the PC9s TWC
has overall responsibility on site.
5.1.3.2
The framework of contractual relationships should be taken into account when planning the
management of temporary works; an overview of likely contractual relationships between clients,
contractors and designers, including both permanent work designers (PWDs) and temporary works
designers (TWDs) is shown in Figure 1. Figure 1 also demonstrates the typical links showing how the
designers should co-operate, even when not in a contractual relationship (shown as dashed).
Figure 1 4 Typical contractual interfaces between parties on a project
NOTE 1 Attention is drawn to the CDM Regulations 2015 [1], which require the principal designer to
take responsibility for all designers on that project and to co-operate, co-ordinate and transfer relevant
information 3 this is shown by a dashed line.
NOTE 2 There is rarely a contract between the principal contractor and a client9s contractor.
5.1.4
5.1.4.1
Responsibilities where a contractor co-ordinates the temporary works
General
The various ways in which the control measures (see 5.1.2) are likely to be implemented on different
projects of varying complexity are shown as lines of responsibility in Figure 2. In all the cases the
sole contractor or principal contractor should manage and co-ordinate the temporary works on the
project themselves.
5.1.4.2
Small contracts
Small contracts, including domestic client projects, often have only one contractor. This is
shown in Figure 2a) and applies to the majority of small organizations, including builders and
scaffolding providers.
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