Denver - When Colorado voters passed Amendment 64 it was left to the state to determine how to regulate the sale of marijuana.

A task force has been established to develop recommendations for the governor and Legislature. 

That task force is looking at a variety of regulations including a residency requirement for the growing, selling and use of marijuana.

"We don't want to be known as the marijuana tourism state," Representative Mark Waller said.   "I don't think anybody in the state had the vision that marijuana tourism was going to be the byproduct of the passage of Amendment 64, so I think it is right and just and proper to try to limit this to the residents of the state of Colorado."