It will soon be illegal for public and private universities in California to consider an applicant’s relationship to alumni or donors when deciding whether to admit them.

Gov. Gavin Newsom on Monday signed a ban on the practice known as legacy admissions, a change that will affect prestigious institutions including Stanford University and the University of Southern California.

California’s law, which will take effect Sept. 1, 2025, is the nation’s fifth legacy admissions ban, but only the second that will apply to private colleges.