Portland addresses outdoor lighting through Title 33 (Planning and Zoning) development standards and Title 32 (Signs). While Portland does not have a standalone dark-sky ordinance, outdoor lighting for new development must be designed to minimize glare, light trespass, and sky glow. The city encourages compliance with International Dark-Sky Association standards.
Title 33 development standards require that exterior lighting for new development and major renovations be directed downward and shielded to prevent light trespass onto adjacent properties and into the night sky. Full-cutoff or shielded fixtures are required for most commercial and multi-family development. PBOT's street lighting program has been transitioning to LED fixtures with improved directionality. The city's Climate Action Plan supports energy-efficient lighting that reduces unnecessary light pollution.
Non-compliant lighting in new development may not receive final approval from the Bureau of Development Services. Existing properties with lighting that creates a nuisance may be subject to complaint-based enforcement.
Portland, OR
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See how Portland's dark sky rules rules stack up against other locations.
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