The Cannabis Cup is scheduled on Moapa tribal land this weekend.
The cup, which has been hosted in other states before, is a competition for the best of the marijuana industry.
The event, which runs this Saturday and Sunday, was being hosted on Moapa tribal lands because organizers thought that meant marijuana could be consumed at the event.
But organizers were forced to change their plans after the tribe received a letter from the U.S. District Attorney for Nevada stating that despite the state legalizing marijuana, it was still illegal federally. The letter comes as the Trump administration has shown a more strict attitude than the Obama administration towards marijuana policy.
Cannabis Cup organizers now say no marijuana will be allowed at the event, and the Cannabis Cup will just be a concert headlined by Ludcaris to celebrate the passage of Question 2.
Organizers say they're hopeful bills being heard this legislative session to implement Question 2 will mean future events in Nevada will allow marijuana consumption.