On Tuesday evening, Idaho Governor Brad Little, a Republican, signed a bill that would make it a felony to provide gender-affirming medical care to transgender minors.

Idaho has become the twelfth state to enact such legislation, and over 20 other states are considering similar bills that would ban or limit gender-affirming care, the Associated Press reported.

The new law will take effect next January and will prohibit healthcare providers from administering hormones, puberty blockers, or any other form of gender-affirming care to individuals under the age of 18.

Those opposed to the law have expressed concerns about its potential to increase suicide rates among teens, while proponents argue that it is necessary to “protect children” from medical or surgical procedures related to gender dysphoria.

Written by staff