Jewish parents seeking to adopt in Texas could soon be turned down by state-funded or private agencies on religious grounds, if new legislation is approved.
Muslim, interfaith and gay couples would also be affected, as would single people, if the proposal in the Republican-controlled legislature gets the go-ahead.
Five other states have passed similar laws to protect faith-based adoption organisations which refuse to place children with families over issues related to religion, but the ruling in Texas would extend the move to state-funded agencies.
Republican supporters say the bill is designed to support the religious freedom of adoption agencies and foster care providers.