The government of U.S. President Donald Trump is attempting to strip transgender people of official recognition by creating a narrow definition of gender as being only male or female and unchangeable once it is determined at birth, The New York Times reported on Sunday.

The Department of Health and Human Services has undertaken an effort across several government departments to establish a legal definition of sex under Title IX, the federal civil rights law that bans discrimination on the basis of sex, the Times said, citing a government memo that it obtained.

That definition would be as either male or female, unchangeable, and determined by the genitals a person is born with, the Times reported.