South Yorkshire's devolution deal will be finalised in Parliament later, four years after it was first announced.
The county, under Sheffield City Region mayor Dan Jarvis, will have new powers and receive about £30m from Whitehall.
Local Government Minister Simon Clarke said the deal would "unlock real benefits for people across South Yorkshire".
Mr Jarvis said it would bring "significant transformations" across the county.
He added: "We have to make the most of the benefits devolution has to offer."
The order for the deal will be laid in Parliament after letters of agreement were submitted by the mayor and council leaders in Barnsley, Doncaster, Rotherham and Sheffield to the Ministry of Housing, Communities and Local Government.
The deal is set to be approved and then the devolved money will be available, the Local Democracy Reporting Service said.
The mayor will have power over transport, strategic planning and skills in the region, plus £900m over 30 years.