I assume this is NEC4 because of the use of the word 'Client'.
The 'preferred' reference is a red-herring as the answer is it would depend upon what is in the subcontract between the Contractor and Subcontractor for liability.
Under the main contract, as far as the Client is concerned, this is a Contractor's risk - see clause 81.1, 2nd bullet of the NEC4 ECC.
The 'preferred' reference is a red-herring as the answer is it would depend upon what is in the subcontract between the Contractor and Subcontractor for liability.
Under the main contract, as far as the Client is concerned, this is a Contractor's risk - see clause 81.1, 2nd bullet of the NEC4 ECC.