Title 18, Business Structure and Function

A contract not in writing may be altered in any respect by consent of the parties, in writing, without a new consideration, and is extinguished thereby to the extent of the new alteration. SOURCE: CC § 1697.

A contract in writing may be altered by a contract, in writing, or by an executed oral agreement, and not otherwise. SOURCE: CC § 1698.

The destruction or cancellation of a written contract, or of the signature of the parties liable thereon, with intent to extinguish the obligation thereof, extinguishes it as to all the parties consenting to the act. SOURCE: CC § 1699.

The intentional destruction, cancellation, or material alteration of a written contract, by a party entitled to any benefit under it, or with his COL120106 consent, extinguishes all the executory obligations of the contract in his favor, against parties who do not consent to the …

Where a contract is executed in duplicate, an alteration or destruction of one copy, while the other exists, is not within the provisions of the last section. SOURCE: CC § 1701. NOTE: No 1970 Civil Code '§ 1702-1707 existed. ---------- COL120106 COL120106