DENVER (AP) — Colorado is considering allowing only state residents to use marijuana recreationally after voters approved a measure to legalize use of the drug for non-medical purposes.

A marijuana regulatory group appointed by Gov. John Hickenlooper started work Thursday writing the details of pot regulation. The group members won't make rules, but they'll recommend to the governor and the Legislature how Colorado should become the nation's first to regulate marijuana like alcohol.

One of the topics before one of the working groups is whether there should be some sort of a residency requirement for growing, selling or even using marijuana.

The workgroup is also mulling whether to allow customers to smoke in marijuana shops.

A separate working group meeting Thursday was looking at consumer safety, including labeling standards and how to regulate growing operations.

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