Colorado's ballot proposition that allows the terminally ill to obtain drugs to end their lives is expected to pass, according to an NBC News projection.
The Proposition 106 bill would allow those with a prognosis of under six months to live to get "aid-in-dying medication" to be self-administered.
The proposition had a yes vote of 65 percent to 35 percent with a little less than 55 percent of precincts reporting as of 10:13 p.m. ET Tuesday. Around 1,129,600 "yes" ballots had been cast compared to a little less than 600,000 for "no."
Related from June: California's 'Right to Die' Law Takes Effect
Proponents said the measure would allow patients to make their own decisions about their lives, while some opponents said there weren't enough safeguards.
"This is a historic day for all Coloradans, and an especially tremendous victory for terminally ill adults who worry about horrific suffering in their final days," Compassion & Choices Action Network President Barbara Coombs Lee said in a statement, according to NBC affiliate KUSA in Denver.
Five other states have laws that create a legal process for patients to obtain aid in dying. California's "End of Life Option Act" went into effect in June.
In 2014, Brittany Maynard used Oregon's law to end her life. The 29-year-old with an inoperable brain tumor moved from San Francisco to Oregon to take advantage of the law, which has been on the books since 1997.