Grass Valley Fire Department  was called out to the DMV Building on Sutton Way around 7:15 this morning to a report of  the smell of smoke in the building.  Battalion Chief Jim Turner says crews searched the building but did not detect anything amiss so they cleared the scene. A little later, firefighters were  were called back.
Click here to listen to Chief Jim Turner

All of the employees and citizens in the DMV building were evacuated and Firefighters worked with PG and E to find the problem.
Click here to listen to Chief Jim Turner

They believe the problem  was coming from a heating and air conditioning unit on the roof of the building.  Once they gave the all clear employees  were allowed back into the building and DMV was re-opened to the public.