Passengers flying from the Portland International Airport (PDX) in the coastal US state of Oregon have been cleared to carry recreational marijuana on board.
The passengers will be allowed to carry the weed while travelling to places including North Bend, Redmond, Eugene, Pendleton or Medford, but are discouraged to carry it outside the state, KPTV reported.
The passengers are also advised to refrain from transporting marijuana even to states such as Washington, where it has been legalised.
The airport installed signs around the terminal that read: "Please be advised recreational marijuana is not permitted on flights traveling outside of Oregon."
The move comes a week after the state made it legal for adults who are 21 or older to use marijuana for non-medical purposes and to carry up to one ounce on them in public places.
According to the changes in rules, once a security agent detects a passenger carrying marijuana, he will inform the police who will make sure that the person is of legal age and will not carry the weed outside the state.
While marijuana is legal in Washington and Colorado, the airports in the state do not allow passengers to carry it on board.
The International Business Times reported that airports in Colorado have installed amnesty boxes where passengers could dispose of their marijuana while airports in Washington discouraged passengers from carrying the substance with them.
The new rules in Oregon also permit citizens to keep up to eight ounces of the drug in their homes, grow up to four plants away from public view and carry up to one ounce outside their homes. However, smoking marijuana publicly will still be considered illegal.
Image: Passengers will not be able to carry marijuana on flights outside Oregon. Photo: courtesy of Porao.