LAWS6991 Chap.7 Express Terms, Collateral Contracts and Incorporation
Express Terms, Collateral Contracts and Incorporation
This chapter asks what the express terms of a contract are. A pre-contractual statement may be a mere representation, a term, or a collateral contract, judged objectively under Hospital Products. Oscar Chess and Dick Bentley contrast sellers with and without special knowledge. Terms are classified as conditions, warranties or intermediate terms.
The parol evidence rule excludes extrinsic evidence only once the contract is wholly in writing, and collateral contracts must be promissory and consistent, as JJ Savage and Hoyt's show. Terms are incorporated by signature, reasonable notice or course of dealing.
What this chapter covers
- 01
Representations and promissory statements
- 02
Hospital Products objective test
- 03
Conditions, warranties and intermediate terms
- 04
Parol evidence rule
- 05
Entire agreement clauses
- 06
Collateral contracts
- 07
Incorporation by signature
- 08
Reasonable notice and course of dealing
Worked example · free
An oral assurance and a signed contract
- 1Issue: is the salesperson's statement a binding promise, either as a term or as a collateral contract, or only a representation?
- 1Rule: under Hospital Products the question is whether an intelligent bystander in the parties' position would infer a promise. Dick Bentley treats a statement by a dealer with means of knowledge, made to induce the contract, as prima facie a warranty.
- 1Application: the salesperson used the word guarantee, is a dealer able to check service records, and knew the florist's purpose. These facts point to a promise, as in Lord Denning's guarantee example, not mere opinion as in JJ Savage.
- 1The parol evidence rule applies only if the contract is wholly in writing. With no entire agreement clause and an express oral assurance, the contract may be partly oral; alternatively the promise is a collateral contract consistent with the writing.
- 1Conclusion: the guarantee is likely enforceable, and the florist can claim damages for its breach.
Key terms
- Mere representation
- A pre-contractual statement that induces a contract but is not a term because its maker does not guarantee it.
- Condition
- An essential term whose breach entitles the innocent party to terminate and claim damages.
- Warranty
- A non-essential term whose breach gives a right to damages only.
- Intermediate term
- A term whose breach permits termination only if the consequences of the breach are serious.
- Parol evidence rule
- The rule that outside evidence cannot add to, change or contradict a contract that is entirely in writing.
- Entire agreement clause
- A clause declaring that the written document contains the whole agreement between the parties.
Express Terms, Collateral Contracts and Incorporation FAQ
How do I tell a term from a representation?
Apply the objective test in Hospital Products: would an intelligent bystander in the parties' position infer that the maker promised the statement was true? Relative knowledge matters, which is why the dealer lost in Dick Bentley and the private seller won in Oscar Chess.
When does the parol evidence rule apply?
Only after a court decides the contract is wholly in writing, which McHugh JA in Heath Outdoor called a question of fact. An entire agreement clause supports that conclusion, but exceptions remain for partly oral contracts, ambiguity, mistake and collateral contracts.
What must I prove for a collateral contract?
That the statement was intended to be relied on, that it was relied on, and that its maker intended to guarantee its truth. The promise must also be consistent with the main contract, which is why the claim failed in Hoyt's v Spencer.
Am I bound by a contract I signed without reading?
Generally yes. L'Estrange v Graucob and Toll v Alphapharm hold that a signature on a document known to contain contractual terms binds, unless there is fraud, misrepresentation or another vitiating factor, as in Curtis v Chemical Cleaning.
Are terms printed on a ticket binding?
Only if reasonable notice was given before or at the time of contracting, and the document was one a reasonable person would expect to contain terms. Causer v Browne, Oceanic Sun Line and Thornton all turn on that timing and notice.
Can a course of dealing incorporate terms?
Yes, as a question of fact and degree, considering the number, recency and consistency of past dealings, as La Rosa v Nudrill explains. The earlier documents must be contractual, not mere receipts, as Rinaldi and Patroni shows.
Exam move
Revise express terms as a four-step routine: characterise each statement, check the parol evidence rule and any entire agreement clause, consider a collateral contract, then confirm how written terms were incorporated. Keep the Oscar Chess and Dick Bentley contrast ready, and learn the three collateral contract requirements in order.
For incorporation, practise identifying the exact moment the contract was made and whether notice came before it. Ask Sia to give you short sales conversations and to check whether you classify each statement correctly.
Working through Express Terms, Collateral Contracts and Incorporation in LAWS6991? Sia is AskSia’s AI Law tutor — ask any LAWS6991 Express Terms, Collateral Contracts and Incorporation question and get a clear, step-by-step explanation grounded in how LAWS6991 is taught and assessed. Read this chapter free, then take your hardest questions to Sia.
