15.10.080 Grading regulations preempted by state or federal law. 
   The grading regulations adopted by this title shall not apply to nor govern any condition where the local regulation of such condition is preempted by any federal or state law. Provided, however, that the purpose of this section is merely to confirm existing law and is not intended to grant an exemption or exclusion from compliance with the city's grading regulations in any instances where the city may exercise jurisdiction under the laws of the federal and state government as well as this code. 
(Ord. 758-2005 (part), 2005)