The identification and understanding of essential roles and functions in a profession, through the application of job analysis methods, can serve as a guide to develop and hone professional competency. The last such analysis of accessibility services administrators in postsecondary education was published in 1997. A variety of changes in the field over the past 25 years warrant an updated examination of these duties. This study presents the results of a Delphi study conducted with 18 experts in postsecondary accessibility services. They were asked to review and rate the prior job duties as well as an array of duties reflected in the current professional literature. The study resulted in a set of accessibility administrator responsibilities that can be used to guide job activities and professional development going forward.