University of Michigan is ready to clear the air.
The Ann Arbor campus adopts a ban on smoking outdoors Friday, making good on plans first announced in 2009.
The school says it will be enforced by voluntary compliance, peer and supervisory support but not fines.
Smoking will only be allowed on perimeter sidewalks along public thoroughfares, and inside personal vehicles.
The university has banned smoking inside its buildings since 1987, and the university's health system has prohibited smoking in and around its facilities since 1999.