Johnston has served as acting director of the department following retirement of Wesley Machida at the end of last year. Prior to that, Johnston was the deputy director of the department.
“It’s an honor and a privilege to continue serving the people of Hawaii as I have for three decades. I appreciate the opportunity to serve under Governor Ige and will work collaboratively to manage our state’s fiscal resources,” Johnston said in a statement.
During her 30-year career in Hawaii, Johnston has worked as a public administrator, researcher and writer in the policy areas of education and health, criminal and social justice, economic development and public finance.