This is an electronic version of an article published in: Baich, Tina, Nora Dethloff, and Brian Miller. 2015. “Unlocking the Interlibrary Loan Code for the United States.” Journal of Interlibrary Loan, Document Delivery, & Electronic Reserve. 25, no 3-5: 75-88, http://dx.doi.org/10.1080/1072303X.2016.1254702. (2016 Great Lakes Resource Sharing Conference proceedings issue). Journal of Interlibrary Loan, Document Delivery, & Electronic Reserve is available online at: http://www.tandfonline.com/toc/wild20/currentA newly revised Interlibrary Loan Code for the United States was approved in 2016, the 100th anniversary of its first appearance. This article outlines the 2-year, iterative revision process undertaken by the ALA RUSA STARS Codes, G...