Same-sex marriage has been legal in the district since 2010, and conversion therapy has been prohibited since 2015. Assisted suicide is also permitted in the district, with a bill legalizing the practice being introduced in 2015, signed by mayor Muriel Bowser in 2016, and going into effect in 2017, making Washington, D.C., the seventh jurisdiction in the United States to have legalized assisted suicide, along with Washington, Oregon, California, Colorado, Hawaii, Montana and Vermont.