The rule applies to parol evidence, as well as other extrinsic evidence such as written correspondence that does not form a separate contract regarding a contract. If a contract is in writing and final to at least one term integrated, parol or extrinsic evidence will generally be excluded. However, there are Ver ms. The parol evidence rule is a rule in the Anglo-American common law that governs what kinds of evidence parties to a contract dispute can introduce when trying to determine the specific terms of a contract. The rule also Ver ms. The parol evidence rule is a common trap for consumers. For example Health club contracts. You enroll in a health club, and the Ver ms. English contract law English trusts law Statute of frauds Ver ms. United StatesIn order for the rule to be effective, the contract in question must first be a final integrated writing it must, in the judgment of the court, be the Ver ms. . Scott Kraus , p. .. Scott Kraus , p. .. Parol, Blacks Law Dictionary, th ed. .. Casa Herre