The Department of Transportation may revoke the registration of any school bus if the department determines that the vehicle:
(1) Is not maintained and operated in accordance with standards and rules applicable to the vehicle under ORS 820.100 to 820.120; or
(2) Is not safe for operation over or is not safely operated over the public highways. [1983 c.338 §753; 1985 c.16 §360; 1985 c.420 §18; 2013 c.768 §153a]