District Of Columbia § 28:2-202 - Final written expression: parol or extrinsic evidence.
Full text of District Of Columbia D.C. Code § 28:2-202 — Final written expression: parol or extrinsic evidence., with citation guidance and answers to common questions.
§ 28:2-202. Final written expression: parol or extrinsic evidence.
28:2-202Terms with respect to which the confirmatory memoranda of the parties agree or which are otherwise set forth in a writing intended by the parties as a final expression of their agreement with respect to such terms as are included therein may not be contradicted by evidence of any prior agreement or of a contemporaneous oral agreement but may be explained or supplemented:
by course of performance, course of dealing, or usage of trade (); and
by evidence of consistent additional terms unless the court finds the writing to have been intended also as a complete and exclusive statement of the terms of the agreement.
Annotations
“Written” and “writing”. Section 1-201.
“Usage of trade”. Section 1-205.
“Term”. Section 1-201.
“Parties”. Section 1-201.
“Course of dealing”. Section 1-205.
“Agreed” and “agreement”. Section 1-201.
Point 3: Sections 1-205, 2-207, 2-302 and 2-316.
3. Under paragraph (b) consistent additional terms, not reduced to writing, may be proved unless the court finds that the writing was intended by both parties as a complete and exclusive statement of all the terms. If the additional terms are such that, if agreed upon, they would certainly have been included in the document in the view of the court, then evidence of their alleged making must be kept from the trier of fact.
2. Paragraph (a) makes admissible evidence of course of dealing, usage of trade and course of performance to explain or supplement the terms of any writing stating the agreement of the parties in order that the true understanding of the parties as to the agreement may be reached. Such writings are to be read on the assumption that the course of prior dealings between the parties and the usages of trade were taken for granted when the document was phrased. Unless carefully negated they have become an element of the meaning of the words used. Similarly, the course of actual performance by the parties is considered the best indication of what they intended the writing to mean.
(c) The requirement that a condition precedent to the admissibility of the type of evidence specified in paragraph (a) is an original determination by the court that the language used is ambiguous.
(b) The premise that the language used has the meaning attributable to such language by rules of construction existing in the law rather than the meaning which arises out of the commercial context in which it was used; and
(a) Any assumption that because a writing has been worked out which is final on some matters, it is to be taken as including all the matters agreed upon;
1. This section definitely rejects:
None.
Source: official District Of Columbia text · Last verified 2026-08-27
Frequently Asked Questions About District Of Columbia § 28:2-202
What does D.C. Code § 28:2-202 cover?
Section 28:2-202 ("Final written expression: parol or extrinsic evidence.") is part of the D.C. Code, the codified statutory law of District Of Columbia. It sets out the legal rule or procedure described in the text above. Statutes are amended regularly, so always verify against the official source.
How do I cite District Of Columbia § 28:2-202?
A common citation format is "D.C. Code § 28:2-202" (District Of Columbia). Legal writing may require the code abbreviation, section number, and year or edition. Match the style required by your court, professor, or publisher.
Is this the official text of District Of Columbia law?
No. This page is for research and education and may not include the most recent amendments. For official current law, check the District Of Columbia official source linked on this page or consult a licensed District Of Columbia attorney.
How does District Of Columbia § 28:2-202 apply to my situation?
Statutes are interpreted in context, and application depends on your specific facts. Only a licensed attorney in District Of Columbia can advise on how this section applies to you. Contact your state or local bar association for a referral.
Sources & Verification
Not legal advice. Verify against the official source and consult a licensed attorney in District Of Columbia.