Pot advertising may hold great promise for the future. But at present that promise is, if you’ll excuse the pun, mostly smoke.

Their only advertising guidelines now are dictated by the Oregon Health Authority

PORTLAND, Ore. (KOIN) — When Attis Trading Company advertises their marijuana shops on billboards around Portland, they follow a few basic rules.

Their only advertising guidelines now are dictated by the Oregon Health Authority

PORTLAND, Ore. (KOIN) — When Attis Trading Company advertises their marijuana shops on billboards around Portland, they follow a few basic rules.

Newspapers in half the states are breaking the law if they mail publications containing ads for marijuana products — even though the states have legalized pot, the U.S. Postal Service said last week.

Several states voted to legalize marijuana this past Election Day but the pot business still has a gripe -- regulations.

Several states voted to legalize marijuana this past Election Day but the pot business still has a gripe -- regulations.

If other products can be rebranded, why not marijuana? After all, it's an industry that's expected to reach $44 billion in sales by 2020.