To which type of contracts does the parole evidence rule not apply?

The parole evidence rule is a legal doctrine that restricts the use of oral or extrinsic evidence to contradict, vary, or add to the terms of a written contract. In the case of oral contracts made after written contracts, the rule does not apply because these subsequent agreements are fresh negotiations not limited by the terms of prior written agreements. As a result, the oral contracts can indeed be used to alter the specifics of the previously established written contract.

In situations where a written contract exists first, any later oral agreements or modifications stand independently and can be used to clarify or change the obligations set out in the original document. This ensures that the intentions of the parties involved in their more recent interactions are honored, reflecting the reality of their agreement.

While verbal contracts made prior to written contracts and written contracts themselves fall under the parole evidence rule, as they are seen as attempts to amend or reinterpret the terms established in the written form, the distinct nature of oral contracts made after signing a written contract allows them to bypass such restrictions. Standard form contracts also typically contain specific clauses and conditions that would not be subject to alteration through parole evidence.