NEC ECC: When submitting Quality/ Technical submissions does this generally form part of the contract or is it just for evaluation purposes only

Basically as a company we have thought if we mention it in the technical submission we have qualified our tender and reduced the risk
 
I.e. stating no over pumping will be necessary or no rock will be encountered
 
I am now thinking that what is stated in our technical submission is for evaluation purposes only and is not a caveat or transfer of risk ownership. Is this the case?