JOHANNESBURG (AP) — South African President Cyril Ramaphosa on Wednesday signed into law a bill that aims to overhaul the healthcare system to address deep inequality, but it faces legal challenges from critics.

The law introduces what is known as National Health Insurance, which will provide funds for all South Africans to access private healthcare. Currently, 80% of the population relies on strained state-run public health services while about 16% has access to private healthcare through medical aid plans.

The country’s unemployment rate is 32.9%, with most of the Black majority population unable to afford private healthcare. Public health facilities often have long lines and medicine shortages.

According to Ramaphosa, the aim of the National Health Insurance is to provide access to quality health care for all and integrate the health system.