What rule prevents a party from introducing evidence that contradicts the written terms of a contract?

The Parol Evidence Rule is the principle that prevents a party from introducing evidence that contradicts the written terms of a contract. This rule is based on the assumption that once parties have reduced their agreement to writing, the written document is a complete and final representation of their intentions. Therefore, any prior or contemporaneous oral agreements or any written statements that contradict the established terms of the contract are inadmissible in court to alter or challenge the meaning of the written contract.

The purpose of the Parol Evidence Rule is to uphold the integrity of written contracts by ensuring they reflect the true intentions of the parties involved. This rule protects the certainty and predictability of contractual agreements, allowing parties to rely on the written terms without concern that contradictory evidence will be introduced later.

Understanding this rule is crucial for anyone dealing with contracts, as it underscores the importance of clear and comprehensive drafting to ensure that all parties' intentions are captured in the written document from the outset.