1. All areas that have a luminaire producing 1800 lumens or less shall be exempt from this chapter.
2. All temporary emergency lighting needed by the Police or Fire Departments or other emergency services, as well as all vehicular luminaires, shall be exempt from the requirements of this chapter.
3. All hazard-warning luminaires required by Federal regulatory agencies are exempt from the requirements of this chapter.
4. A building or structure that has been designated for historic preservation by the City of Hiawatha, the State of Iowa, or the Federal Government shall be exempt from the full cutoff fixture requirements, if an historic restoration cannot be achieved by other means.
5. Any Federal, State or local laws that conflict with this chapter shall take precedence over the conflicting provisions of this chapter.
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