Outdoor Lighting in Oregon (2026)
28 rules on the books across Oregon, 13 cities and counties. Select a rule to read the full details.
Severity: Few Restrictions · Light Restrictions · Some Restrictions · Significant Restrictions · Heavy Restrictions
Dark Sky Rules
Ordinances designed to reduce light pollution, including requirements for shielded fixtures, limits on brightness, and curfews for decorative lighting.
Eugene
Significant RestrictionsEugene bans high pressure sodium, mercury vapor and floodlight fixtures in its Intrinsically Dark Areas and Low Ambient…
Read full rule →Beaverton
Some RestrictionsNew development and redevelopment in Beaverton must meet the Development Code's Technical Lighting Standards: fixtures…
Read full rule →Clackamas County
Some RestrictionsClackamas County has no formal 'dark-sky' overlay, but ZDO Subsection 1005.04 requires outdoor lighting not to direct…
Read full rule →Hillsboro
Some RestrictionsHillsboro requires full cut-off shielding on any exterior fixture emitting more than 900 lumens (roughly a 60-watt…
Read full rule →Lane County
Some RestrictionsLane Code requires every new outdoor light fixture in the Goshen Industrial and Light Industrial zones to be a full…
Read full rule →Marion County
Some RestrictionsSalem's development code requires exterior lighting not to shine or reflect onto adjacent properties or cast glare onto…
Read full rule →Multnomah County
Some RestrictionsMultnomah County requires new and permit-triggered exterior lighting in unincorporated areas to be fully shielded and…
Read full rule →Portland
Some RestrictionsAlong the Willamette River, Portland's zoning code bans upward-facing exterior lights and requires full opaque…
Read full rule →Salem
Some RestrictionsSalem's development code caps exterior lighting citywide: fixtures cannot shine or reflect onto neighboring properties…
Read full rule →Washington County
Some RestrictionsExterior lighting on new attached-unit and non-residential developments in unincorporated Washington County must meet…
Read full rule →Light Trespass & Shielding
Rules preventing outdoor lights from shining onto neighboring homes, shielding and full-cutoff fixture requirements, aiming standards, and footcandle caps at the property line.
Beaverton
Some RestrictionsBeaverton caps how much light a new development's fixtures may cast onto neighboring land, tied to shielding and cutoff…
Read full rule →Benton County
Some RestrictionsWithin Benton County's Airport Industrial Park (AIP) zone, BCC 81.240(12) requires street and area lighting to be fully…
Read full rule →Clackamas County
Some RestrictionsClackamas County's ZDO addresses light trespass through Subsection 1005.04, which requires outdoor lighting to be…
Read full rule →Eugene
Some RestrictionsEugene requires most outdoor lighting fixtures to be cutoff and shielded so light stays within the boundaries of the…
Read full rule →Gresham
Some RestrictionsGresham's Development Code requires full cut-off outdoor light fixtures with a 90-degree cutoff angle on Corridor…
Read full rule →Hillsboro
Some RestrictionsHillsboro caps how much a development's exterior lighting can spill onto neighboring land: lighting reviewed under the…
Read full rule →Lane County
Some RestrictionsLane Code defines "shielding" for outdoor fixtures in the Goshen Industrial and Light Industrial zones so that emitted…
Read full rule →Marion County
Some RestrictionsSalem's code states exterior lighting shall not shine or reflect onto adjacent properties or cast glare onto the…
Read full rule →Medford
Some RestrictionsMedford Code § 10.764 caps light trespass at 0.5 footcandles on any residential property line other than the lot…
Read full rule →Multnomah County
Some RestrictionsUnincorporated Multnomah County requires new exterior lighting tied to a development permit to be fully shielded and…
Read full rule →Portland
Some RestrictionsPortland caps glare from nonresidential lighting at 0.5 foot candles measured on a neighboring property and bans strobe…
Read full rule →Salem
Some RestrictionsSalem bans exterior lighting that shines or reflects onto a neighbor's property or casts glare into the public…
Read full rule →Washington County
Some RestrictionsWashington County measures light trespass at the property line, not at the fixture. Section 415-3.8 defines maximum…
Read full rule →Billboard Lighting
Lighting standards for outdoor advertising, luminance limits, dwell time, sky-glow mitigation, and curfew hours after which billboards must dim or shut off.
Beaverton
Heavy RestrictionsBeaverton prohibits billboards outright citywide under its Development Code, so there's no separate billboard-lighting…
Read full rule →Benton County
Some RestrictionsBenton County's sign code, BCC § 91.820, bans any rotating beacon or flashing light designed to grab attention on a…
Read full rule →Eugene
Some RestrictionsDigital billboards along Eugene's highway commercial corridors can't exceed an internal illumination intensity of 0.3…
Read full rule →Multnomah County
Some RestrictionsMultnomah County Code § 39.6770(E)(11) requires every light fixture on a billboard in the unincorporated county to be…
Read full rule →Washington County
Some RestrictionsDigital billboards permitted in Washington County's General Commercial District can only show static, unmoving messages…
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