Vermont Governor Peter Shumlin on Wednesday signed a bill into law that prohibits therapies that attempt to alter the sexual orientation or gender identity of LGBT youth.

According to NBC affiliate WPTZ, the measure sailed through the General Assembly.

Shumlin, a Democrat, signed the bill on the Statehouse steps.

“The practice is not only archaic, but it's wrong,” he told reporters.

Chad Griffin, president of the Human Rights Campaign (HRC), the nation's largest LGBT rights advocate, applauded the move.

“No young person should be subjected to this extremely harmful and discredited practice, which medical professionals agree not only doesn't work, but can also have life-threatening consequences. It is nothing short of child abuse. We thank Governor Shumlin and the Vermont State Legislature for prioritizing the well-being and safety of our nation's youth, and remain committed to working with our partners to ensure that this quackery is banned from coast to coast,” Griffin said in a statement.

Vermont joins California, New Jersey, Oregon, Illinois, New York and the District of Columbia in banning the practice. The practice is also banned in Cincinnati. Vermont's law takes effect July 1.