The Australian Health Informatics Competency Framework (AHICF) guides the healthcare workforce in identifying the required competencies to perform as a health informatician, and more definitively defines the foundational body of knowledge on which the discipline is based. The aim of this paper is to describe the conceptual foundations in developing the AHICF v1.0, detail the methods used to revise and publish AHICF v2.0, and explore the certification and workforce outcomes achieved. This paper contributes to the competency framework and certification discourse, and knowledge of the increasing importance and recognition of health informaticians through certification. Further, implications for workforce training and education, career advancement and recruitment strategies, are also discussed.