The NCAA agreed Tuesday to settle a class-action head injury lawsuit by creating a $70 million fund to diagnose thousands of current and former college athletes to determine if they suffered brain trauma playing football, hockey, soccer and other contact sports.

College sports’ governing body also agreed to implement a single return-to-play policy spelling out how all teams must treat players who received head blows, according to a Tuesday filing in U.S. District Court in Chicago. Critics have accused the NCAA of giving too much discretion to hundreds of individual schools about when athletes can go back into games, putting them at risk.

Unlike a proposed settlement in a similar lawsuit against the NFL, this deal stops short of setting aside money to pay players who suffered brain trauma. Instead, athletes can sue individually for damages and the NCAA-funded tests to gauge the extent of neurological injuries could establish grounds for doing that.