States Rights: Oregon will soon qualify as the third U.S. state to ask voters in November to legalize marijuana for recreational use in a move that could put the state on a collision course with the federal government, proponents said on Friday.

Backers of the Oregon Cannabis Tax Act said they have collected 165,000 signatures on petitions seeking to put the measure on the ballot, nearly double the 87,000 they were required to submit by Friday’s deadline to qualify.

“We believe we’re going to make it easily,” said Paul Stanford, the chief petitioner and founder of the Hemp and Cannabis Foundation, which runs medical marijuana clinics in several states.