The Codex Committee on Hygiene is in the process of revising the general principles of Hygiene (Codex, 2020). This document was first published in 1969; since that time, there have been six revisions, amendments or corrections. As of the writing of this article, another revision is in progress. Codex has published the body of the text and most of the diagrams; however, the Decision Tree is still under review by the Codex Committee.