Okla. Stat. tit. 12A, § 3-402
Oklahoma Code Comment
Section 3-402 and the Official UCC Comments to it provide that the law of agency will govern the determination of whether a represented person will be bound by the act of a representative. Together with Section 3-401 , this Section clarifies that an undisclosed principal may be bound on an instrument. This changes the result under the old Uniform Negotiable Instruments Law and pre-revision Article 3, which did not make an undisclosed principal liable on the instrument. See Britton v. Mitchell, 361 F.2d 922 (lOth Cir. 1966).
Section 3-402 also changes Oklahoma law with respect to the liability of a representative in certain other circumstances. Prior Oklahoma cases held authorized representatives personally liable on checks drawn on the principal's account where the representative's capacity was not indicated on the check. See. e.g., American Exchange Bank Collinsville, Okla. v. Cessna, 386 F.Supp. 494 (N.D. Okla. 1974); A.L. Jackson Chevrolet, Inc. v. Oxley, 564 P.2d 633 (Okla. 1977); Guaranty Nat'l Bank v. Beaver, 738 P.2d 1336 (Okla. 1987). Cf American Bank of Commerce v. Boger-Hare Mfg. Co., 633 P.2d 1270, 1272 (Okla. Ct. App. 1981) (same result with regard to notes). Section 3-402 rejects those cases with regard to checks by providing that the representative is not personally liable so long as the corporation is identified on the check.
In addition, as against all persons other than a holder in due course without notice of the intention not to be liable, subsection (b)(2) will always allow a representative to prove his or her signature on an instrument was made solely in a representative capacity, even if that capacity is not indicated. This result concurs with prior Oklahoma case law, which generously allowed the admission of parol evidence to establish a signatory's true capacity. See Moore v. White, 603 P.2d 1119 (Okla. 1979); Guaranty Nat'l Bank v. Beaver, 738 P.2d 1336 (Okla. 1987). It will overturn some older, stricter cases, such as Weagant v. Camden, 37 Okla. 508, 132 P. 487 (1913), and Keokuk Falls Improvement Co. v. Kingsland & Douglas Manufacturing Co., 5 Okla. 32, 47 P. 484 (1896). Where the representative capacity is indicated on the instrument, this provision generally will continue prior Oklahoma law. See Harris v. Milam, 389 P.2d 638 (Okla. 1964) (corporate designation and signers' corporate offices appeared under individuals' signatures; parol evidence allowed to show intent that corporation was solely liable on note).