The head of the ACT Emergency Services Agency is set to step down from the role.
Dominic Lane announced his resignation from his role as the agency's commissioner, after more than six years in the top job.
Mr Lane is set to move into a new role as the chief executive of the South Australian Fire and Emergency Services Commission.
Emergency Services Minister Mick Gentleman praised Mr Lane's time as commissioner and said he led the organisation through periods of cultural change.
"Under Dom's leadership, the ESA has continued to be one of the highest-performing emergency services agencies in the nation year-on-year, consistently delivering the fastest ambulance and fire responses times," Mr Gentleman said.
"After six-and-a-half years of protecting the people of Canberra, Dom considers it's time for a new challenge.
"I've no doubt Dom will be a tremendous asset for the people of South Australia, as he has been for the ACT."
A replacement for Mr Lane's position has yet to be announced, with an acting commissioner to be appointed before recruitment begins for a permanent role.
Mr Lane came into the role in January 2013, being appointed just 10 days before the 10th anniversary of the Canberra bushfires.