Dobbins JLUS IMP Public Draft Light Pollution Study | Page 82

Applicability: Sun Valley, Idaho Lighting Ordinance
The City of Ketchum’s Dark Sky Ordinance applies to all exterior lighting in all zoning districts. All existing
lighting that is part of a new application for design review, conditional use, subdivision permit or building permit is
required to come into conformance within 30 days of the issuance of a permit. Existing commercial lighting had
until June 30, 2000 to come into compliance. The Sun Valley, Idaho Lighting Ordinance was created to prevent glare, light pollution and wasted resources which
could result in hazardous conditions, diminishing ability to view the night sky, light trespass, and unattractive
townscapes. As a resort community, the City of Sun Valley strives to protect its natural environment to attract
tourists and recognizes that the night sky adds to the quality of life and economic well-being of the City.
GeneralProvisions: Applicability:
Lighting provisions are provided for luminaries, external shielding for floodlights, holiday lights, and sensor
activated lights. Vehicle lights and temporary emergency lighting are exempt. All existing and/or new exterior
lighting shall not cause light trespass and shall be such as to protect adjacent properties from glare and excessive
lighting. Lights on a timer are encouraged, and sensor activated lights are encouraged to replace existing lighting
that is desired for security purposes. The City of Sun Valley, Idaho’s outdoor lighting ordinance is applicable to all outdoor lighting fixtures. Provisions
for bringing existing lighting into conformance with the ordinance are provided.
Area lights, including street lights and parking area lighting should be full cutoff fixtures, and are encouraged to be
greater in number, lower in height, and lower in light level. Luminaire mounting height is restricted to 25 feet except
for playing fields provided light is used only while the field is in use. Building mounted luminaires may only be
attached to walls; up-lighting is prohibited with the exception of flag pole lighting. Lighting cannot cause glare on
public rights of way or adjacent properties. Tower lighting is limited to white strobe lights during the day, and red
allowed at night. The planning zoning administrator may allow nonconforming exterior lighting on a temporary
basis. Lighting design guidelines are provided.
GeneralProvisions:
All exterior lighting must be designed and located to prevent and minimize over-lighting, energy waste, glare, light
trespass, and sky glow. Non-essential lighting must be turned off after business hours. Timers and sensors are
encouraged. Canopy lighting cannot be visible from or cause glare to public right of ways or adjacent properties.
Unshielded or clear glass luminaries are prohibited. Residential holiday lighting is allowed, but it is limited to
between November 1 and March 15, with flashing lights prohibited. Freestanding luminaires in residential zones
cannot exceed 12 feet in height, parking area luminaires 17 feet in height, and streetlights 20 feet in height;
luminaries for playing fields are exempt provided they are only used while the field is in use.
Taos, New Mexico Outdoor Lighting Ordinance
San Bernardino County, California Lighting Ordinance
San Bernardino County adopted a lighting ordinance to preserve the dark sky enjoyed by residents of the mountain
and desert areas of the county.
Applicability:
The San Bernardino County lighting ordinance specifies provisions based on location in the County. Different
provisions apply to the Valley area of the County versus the Mountain and Desert Areas.
GeneralProvisions:
In the Valley area, commercial and industrial lighting must be shielded in a manner that precludes light pollution or
light trespass on abutting residential areas and public right-of-ways. Glare is restricted. In the Mountain and Desert
Areas, shielding, height, hour limitations, sign illumination, holiday lighting, and pedestrian lighting provisions are
included.
The Town of Taos, New Mexico adopted a lighting ordinance to promote energy efficiency and reduce and prevent
light pollution. The ordinance compliments the New Mexico Night Sky Protection Act, and strives to protect the
Town’s historical legacy and provide enjoyment of the night sky.
Applicability:
The Town of Taos New Mexico’s outdoor lighting ordinance is applicable to all outdoor lighting fixtures. Provisions
for bringing existing lighting into conformance with the ordinance are provided. Traffic lights, existing street lights,
moving vehicle lights, navigation lights, seasonal decorations, sport’s field lighting, covered porch lighting on
residential homes, and security lights on motion sensors are exempt.
GeneralProvisions:
Outdoor lighting must be hooded, shielded, or aimed downward, and bright light shining onto adjacent property or
streets which causes glare is not permitted. Light trespass beyond property boundaries is considered noncompliant.
Up-lighting is prohibited, and limits are placed on spotlighting on landscaping and foliage. The town further
reserves the right to restrict searchlights, quartz lighting, laser lights, pole height, and level of illumination but does
not provide specific standards.
Sandy, Oregon Dark Sky Ordinance
Sandy, Oregon’s Dark Sky Ordinance was created to regulate outdoor lighting in order to reduce or prevent light
pollution; this means to the extent possible the reduction of glare, light trespass, the conservation of energy, and the
promotion of safety and security.
Applicability:
All exterior lighting in any and all zones in the City must comply with the requirements of the Dark Sky Ordinance.
Provisions for bringing existing and non-conforming lighting into compliance are provided. Federal and state funded
roadway construction projects are exempted from the requirements of the ordinance, as well as holiday lighting, and
full cutoff street lighting which is part of a federal, state, or municipal installation. Navigation lighting, road hazard
warnings, and temporary lighting associated with emergency operations are also exempt.
GeneralProvisions:
All newly installed lighting must be full-cutoff fixtures. Lighting is prohibited that presents a clear hazard to
motorists, cyclists, or pedestrians, and laser sources lighting. The ordinance provides shielding standards based on
the lamp type.
Page A- 14
Tempe, Arizona Dark Sky Ordinance
The City of Tempe, Arizona adopted a Dark Sky Ordinance to prevent unnecessary or improperly designed light
fixtures from emitting undesirable light rays into the night sky. This lighting could pose a detrimental effect on
astronomic observation in the City and the State of Arizona.
Applicability:
The Dark Sky Ordinance is applicable throughout the City of Tempe on any new installation of outdoor lighting.
Provisions for non-conforming light fixtures are not included in the ordinance.
GeneralProvisions:
All outdoor lighting fixtures must be shielded or filtered, and time limits are placed on illumination of recreational
facilities. Lighting on outdoor advertising signs must be turned off between the hours of 11 p.m. and sunrise.
Mercury Vapor fixtures are prohibited. Outdoor building, landscaping, and signage illumination provisions are
provided.
Appendix A:
White Paper – Communities Addressing Light Pollution that Affect Nighttime Military Training