A. Outdoor lighting must be fully shielded and aimed downward. Fully shielded denotes lighting fixtures that are shielded, focused, or constructed so that light rays do not project horizontally or vertically. The shield must be arranged in such a manner that light rays emitted from the device or fixture, whether directly from the lamp or indirectly from the fixture, are projected below the horizontal plane at the lowest point on the fixture where the light is emitted. The light must be aimed to ensure that the illumination is only pointing downward onto the ground surface with no escaping light permitted to contribute to sky glow by shining upward into the sky. Examples of acceptable and unacceptable lighting fixtures are shown in Section 17.71.080.

B. Post-top luminaries, which may also be referred to as period lighting or historical lighting, shall have built-in reflectors that effectively eliminate up-lighting.

C. Any outdoor lighting that shines onto adjacent property or streets that produce a nuisance or disabling glare, or that is above the horizontal plane, shall not be permitted.

D. Light trespass that extends beyond the property or project boundaries within or adjacent to residentially zoned and/or designated properties shall not exceed an intensity level of 0.5 foot-candles at the property line as measured three feet above the ground or finished grade. This light intensity maximum shall also apply to lands zoned and/or designated agriculture, parks, and open space.

E. Light fixtures mounted under a canopy shall be recessed so that lighting is fully shielded by either the roof or canopy fascia and is projected below the horizontal plane as stated in subsection A of this section.

F. Up-lighting is only permitted if it is effectively contained and will not shine beyond the intended target into the night sky. Containment of lighting may include, but is not limited to, overhanging architectural elements such as eaves or awnings, or landscaping such as dense shrubs or dense evergreen tree canopies.

G. Outlining of a building by means of neon, LED or other lighting shall be effectively contained to not shine into the night sky. Containment of lighting may include, but is not limited to, overhanging architectural elements such as eaves or awnings, or use of backlighting techniques.

H. Existing fixtures may be adapted to comply with this chapter by adding a properly designed shield or by pointing any upward-mounted, shielded fixture downward towards the ground surface.

I. Lighting sources, fixtures and related structures shall be maintained in sound operating condition at all times. Maintenance shall include, but is not limited to, replacement of broken lenses, burned out light sources, adjustments to fixture tilt, cleaning of fixtures and lenses, painting of standards, and replacement or adjustments to shields and/or baffles.

J. All fixture installations shall meet the most recent applicable regulations of the Building Code, the Electrical Code, Title 24, and any other related health, safety, and energy codes as they pertain to lighting and light fixtures as adopted by the city. (Ord. 5122 § 2, 2023; Ord. 4715 § 1, 2012; Ord. 4617 § 6, 2010)