NORMAN, Okla. (AP) - The University of Oklahoma says no one has been fined since the campus banned smoking six months ago.

OU spokesman Michael Nash says the new policy has also led to a "noticeable decrease" in the amount of cigarette butts littered around campus. The Oklahoman reports that although no one has been fined, the university has issued 13 warnings since the ban took effect in July.

Last year, the OU Board of Regents approved a campus tobacco policy that included two designated smoking areas in parking lots near Dale Hall and the Lloyd Noble Center. That was followed by an executive order from Gov. Mary Fallin prohibiting tobacco use on state property - meaning the entire campus is covered by the ban.

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