17.36.220   Mobile or portable signs.
   The physical characteristics, placement and operation of such signs shall be governed as follows:
   A.   The display area shall not exceed fifty square feet per side of such signs.
   B.   No blinking, strobe or other pulsating lights may be used.
   C.   The placement shall be on privately owned property; provided, that on any corner lot there shall be no such sign within a forty-foot radius from the intersection of the property lines of any street or avenue.
   D.   The sign shall be properly and adequately secured to avoid any inadvertent movement thereof by the elements or otherwise which would result in an encroachment on public ways or which may cause any injury or inconvenience to those using such public ways.
   E.   The owner or permit holder shall provide public liability and property damage insurance in the amount set forth in Section 17.36.270, and shall provide evidence thereof upon the request of the city through its building inspector or such building inspector's representative.
   F.   The owner or permit holder shall inform the building inspector of the placement and movement of such signs.
(Ord. 441 Art. VI § 25, 1992).