[level] the playing field

to create equal opportunities for all individuals or groups, regardless of their background or circumstances

The point of this legislation is to level the playing field for those who have typically found it harder to access public funding.
Equal pay is necessary to level the playing field in the workplace.
They created a mentorship program to level the playing field for young professionals.
Fairer regulations would help level the playing field in international trade.
The new rules aim to level the playing field between small and large companies.