The Often Imitated, But Not Yet Duplicated, Revised Uniform Commercial Code Article 1 † Keith A. Rowley † † ... Article 1 provides rules that govern all transactions covered by the UCC without regard to their nature. It contains general rules of construction for interpreting the provisions of the entire Code, definitions applicable throughout the Code, a choice of law rule that applies to the other articles to the extent they do not contain their own provisions on choice of law, and a few substantive provisions applicable throughout the entire Code. Its provisions are the coordinating mechanism that holds the Code together, providing a level of commonality across the various substantive Articles of the Code. Because the provisions of Article 1 apply to the entire Code, the impact of decisions regarding what provisions it includes is greater than that for decisions regarding provisions in individual articles.... 1 The ubiquitous nature of Article 1 justifies studying proposals to revise it. Part One of this paper discusses four notable differences between Revised Article 1 and the version of Article 1 presently in force in a majority of states. Part Two gauges how Revised Article 1 has fared thus far in those states which have enacted it or are presently considering enacting it. Part Three considers the pros and cons of each notable change, suggests one or more legislative response(s) to each, and briefly analyzes some implications of each response.