In this article, Karl Llewellyn outlines the theoretical and practical foundations for the Uniform Commercial Code, explaining its purpose as a systematization of commercial law rather than a replacement of common law authority. Llewellyn emphasizes that the UCC was designed to clarify, harmonize, and modernize commercial transactions across jurisdictions while preserving judicial discretion and established legal principles.
The article situates the UCC as a response to fragmented state commercial statutes and inconsistent judicial interpretations, arguing that commercial predictability depends on standardized rules grounded in real business practices. Llewellyn explains that the Code does not create commercial obligations in isolation, but instead operates within a broader legal framework that includes courts, statutes, and long-standing doctrines of contract and property law.
By framing the UCC as an interpretive and coordinating instrument rather than a self-executing source of authority, the article clarifies the limits of commercial codification and the continuing role of courts in defining rights and obligations. This work remains a foundational reference for understanding the structure, purpose, and legal status of the Uniform Commercial Code.
Citation
Llewellyn, K. N. (1957). Why we need the Uniform Commercial Code. University of Florida Law Review, 10, 367–381.
University of Florida Law Review (PDF)