The Oregon Congressional Delegation got an answer from the U.S. Postal Service that also affects Washington state, when it comes to marijuana advertising.

While a number of smoke supply stores and pot stores have dabbled in radio and other advertising, some have inquired about direct-mail ad campaigns. According to the U.S. Postal Service, it's a no no.

Because marijuana is still prohibited at the FEDERAL level, it's illegal to send out any sort of advertising or mail material that promotes the sale, use or other aspects of the marijuana industry.

Your mailbox gets cluttered with advertisements every day from a myriad of businesses, but pot stores won't be one of them in the near future.

Now, if a business chooses to send out advertisements for marijuana, the local postmaster cannot refuse to distribute it to citizens. BUT, the postal officials are required to note the business and the nature of the pot advertising, and then report it to the feds.

So, they're having to act as "narcs", and the business will likely faced repercussions for violating a federal law - even though they're mailing stuff in states where pot is legal, such as Washington, Oregon, and yes, Colorado.

Confused?  So are a lot of other people.