This article is an introduction to and translation of the wall inscription “Zhaoshu sishi yueling wushitiao” dating to 5 C.E., which was recovered from the Xuanquanzhi site, located near Dunhuang, Gansu Province. “Zhaoshu sishi yueling wushitiao” is the sole known example of a Han edict in wall inscription form. It provides new information about the processes by which an edict was created and disseminated in late Western Han times, and about the nature and scope of seasonal governance. The core of this article is an annotated translation of the entire inscription. By way of introduction, the article includes an overview of the Xuanquanzhi excavation; a brief discussion of the people named in the inscription, their titles, and related events; and an examination of the parallels between the inscription and transmitted texts. The two appendices present a transcription of “Sishi yueling” in the original vertical format, and a table showing the correspondences between “Sishi yueling” and its transmitted parallels.