"Trans* donors who have not had gender-affirming genital surgery will be screened by their assigned birth sex," CBS said in a statement to BuzzFeed Canada.

"We recognize their assigned birth sex may be different than the gender with which they identify."

Donors who have had genital surgery will be screened by their "chosen sex," but they must wait one year after their operation before donating. CBS said "trans*" includes "all transgender, non-binary and gender non-conforming identities."

The new screening process will be in effect as of August 15.