“This Agreement may not be added to, modified or otherwise altered, except by writing signed by an authorised NCD representative.” “This Agreement is the complete, final and exclusive statement of the terms of the agreement between the parties and supersedes any and all other prior and contemporaneous negotiations and agreements, whether oral or written, between them relating to the subject matter hereof.”
“No order shall be subject to any conditions, whether additional to or inconsistent with these conditions, unless the Seller expressly so provides or assents to the same in writing.”
“The same point may be made in a purely English context by reference to the treatment of entire agreement clauses, which give rise to very similar issues. Entire agreement clauses generally provide that they “set out the entire agreement between the parties and supersede all proposals and prior agreements, arrangements and understandings between the parties.”
“The purpose of an entire agreement clause is to preclude a party to a written agreement from threshing through the undergrowth and finding in the course of negotiations some (chance) remark or statement (often long forgotten or difficult to recall or explain) on which to found a claim such as the present to the existence of a collateral warranty. The entire agreement clause obviates the occasion for any such search and the peril to the contracting parties posed by the need which may arise in its absence to conduct such a search. For such a clause constitutes a binding agreement between the parties that the full contractual terms are to be found in the document containing the clause and not elsewhere, and that accordingly any promises or assurances made in the course of the negotiations (which in the absence of such a clause might have effect as a collateral warranty) shall have no contractual force, save insofar as they are reflected and given effect in that document. The operation of the clause is not to render evidence of the collateral warranty inadmissible in evidence as is suggested in Chitty on Contract 28th ed Vol 1 para 12-102: it is to denude what would otherwise constitute a collateral warranty of legal effect.”
“if the parties agree that the written contract is to be the entire contract, it is no business of the courts to tell them that they do not mean what they have said.”