2 rules for unincorporated Washington County, Oregon.
Verified from official government sources
Washington County regulates outdoor lighting through CDC §414 requiring shielded fixtures and no light trespass onto neighboring properties. Cities including Beaverton, Hillsboro, and Tigard enforce dark-sky-inspired standards in commercial and industrial zones near residential edges.
Washington County Community Development Code Section 415 regulates outdoor lighting on development sites. Light sources must be shielded so direct light does not trespass on adjacent residential property. Code enforcement handles complaints in unincorporated areas.
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