Two police forces have been given the go-ahead to set up a joint road policing unit.
Bedfordshire and Hertfordshire already have several joint units, including a dog unit and major crime unit.
The new collaboration will deal with road policing issues, including traffic patrols, road accident and road death investigations.
The police authorities said the move would save the two forces a total of £654,000 each year.
This saving is expected to increase to about £700,000 a year.
Peter Conniff, Bedfordshire Police Authority chairman, said: "The creation of this new joint unit will enable the two forces to pool their resources in this specialised area of policing bringing operational efficiencies and financial savings."
Stuart Nagler, chairman of Hertfordshire Police Authority, added: "This decision will bring greater resilience and efficiency to this key area of policing.
"It will also contribute significantly to the savings needed to enable Hertfordshire and Bedfordshire to limit the impact of the budget cuts on our front-line policing."