Clark County could be home to up to 15 marijuana retailers by the time the state starts doling out licenses to legal pot sellers next spring.

The Washington State Liquor Control Board on Wednesday approved a series of supplemental rules to guide the adoption of a system to grow, process and sell marijuana, which included capping the maximum number of pot shops statewide at 334.

In Clark County, up to six shops would be allowed in Vancouver, with up to the same number allowed in unincorporated parts of the county, according to the liquor control board. Meanwhile, the board approved one store apiece for Battle Ground, Washougal and Camas.

Under the state’s guidelines, the most populous cities within each county are allocated a proportionate number of stores, in addition to at-large stores available to serve other areas of the county.

Brent Boger, a Washougal city councilman and a city attorney for Vancouver, said the stores’ eventual locations will depend on zoning, an issue cities have been reluctant to address until the liquor control board formed guidelines for growing and selling pot.