The South Yorkshire Mayoral Combined Authority (SYMCA) is a formal partnership of councils that shapes policy and leads on decision-making. Formed in 2014, the constituent members of the Mayoral Combined Authority are Sheffield, Rotherham, Barnsley, and Doncaster councils.
SYMCA own the South Yorkshire Supertram System, which commenced operation in 1994. SYMCA is now embarking on wide ranging renewal programme of Supertram that will see significant investment and improvement across all aspects of the system over the coming years