Illinois General Assembly - Full Text of SB3501
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Full Text of SB3501  103rd General Assembly



SB3501 EngrossedLRB103 36511 AWJ 66617 b

1    AN ACT concerning safety.
2    Be it enacted by the People of the State of Illinois,
3represented in the General Assembly:
4    Section 1. Short title. This Act may be cited as the
5Responsible Outdoor Lighting Control Act.
6    Section 5. Findings. The General Assembly finds that:
7        (1) Article XI of the Illinois Constitution states the
8    public policy of the State and the duty of each person is
9    to provide and maintain a healthful environment for the
10    benefit of this and future generations and that the
11    General Assembly shall provide by law for the
12    implementation and enforcement of this policy.
13        (2) The House of Representatives has resolved in House
14    Resolution 884 of the 96th General Assembly to (i) express
15    its support for improved night preservation practices in
16    Illinois, (ii) encourage State agencies to adopt suitable
17    outdoor lighting practices based on the principles of
18    applying artificial light only where it is needed, when it
19    is needed, and to only the levels needed using the best
20    safety and energy-efficient standards available, and (iii)
21    encourage the Illinois Sustainable Technology Center of
22    the University of Illinois to provide artificial outdoor
23    illumination engineering assistance to State agencies,



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1    municipalities, and businesses that seek to implement
2    responsible outdoor lighting to conserve and preserve the
3    important natural phenomenon of night.
4        (3) The Senate has resolved in Senate Resolution 64 of
5    the 103rd General Assembly that local governments in
6    Illinois should abide by the International Dark-Sky
7    Association (now known as Dark Sky International)
8    guidelines and lighting principles to help mitigate the
9    effects of light pollution produced by outdoor lighting.
10        (4) The State should promote responsible outdoor
11    lighting.
12        (5) Government structures, facilities, places, and
13    spaces should serve as models of best practices for
14    private structures, facilities, places, and spaces. These
15    government structures, facilities, places, and spaces
16    should encourage residents, business owners, and others to
17    join in transitioning to responsible lighting.
18    Section 10. Definitions. As used in this Act:
19    "ANSI/IES standards" means the American National Standards
20Institute and Illuminating Engineering Society's lighting
21guidelines, also known as the IES Lighting Library Standards
23    "Correlated color temperature" means the measure of the
24approximate spectrum of the color of light of an object as
25perceived by the eye, measured in degrees Kelvin.



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1    "Fully shielded" means a luminaire that is constructed in
2such a manner that all light emitted, either directly from the
3lamp or indirectly by reflection or refraction from any part
4of the luminaire, is projected below the horizontal plane
5aligned with the bottom of the luminaire aperture, where no
6part of the lamp protrudes outside of the luminaire or shield.
7    "Glare" means light emitted by a luminaire that causes
8visual discomfort, reduced visibility of objects, or produces
9momentary blindness.
10    "Illuminating Engineering Society Backlight, Uplight, and
11Glare rating" or "IES BUG rating" means the luminaire
12classification system developed by the Illuminating
13Engineering Society that ranks and defines how many lumens of
14light a luminaire emits backwards, upwards, and in glare.
15    "Lamp" means the component of a luminaire that produces
17    "Light pollution" means the scattering of artificial light
18into the nighttime environment caused by excessive or
19improperly positioned artificial outdoor lighting resulting in
20sky glow, light trespass, or glare.
21    "Light trespass" means light emitted by a luminaire that
22shines beyond the boundaries of the property the luminaire is
23intended to illuminate.
24    "Luminaire" means a complete installed or portable
25illuminating device, including a lamp, together with the parts
26designed to distribute the light, such as a reflector or



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1refractor, parts to position and protect the lamps, and parts
2to connect the lamps to a power supply.
3    "Lumen" means a standard unit of measurement of luminous
5    "Lux" means a standard unit of luminous flux expressed in
6lumens per square meter.
7    "Nadir" means the point on the ground that is directly
8below the center of a luminaire.
9    "Ornamental lighting" means a luminaire that has a
10historical or seasonal holiday purpose and that serves a
11historical or seasonal holiday purpose only.
12    "Outdoor luminaire" means installed or portable outdoor
13artificial illuminating devices used for flood lighting,
14roadway and area lighting, general illumination, or
16    "Permanent outdoor luminaire" means exterior lighting or a
17system of lighting that is used in place for 7 or more days.
18    "Reflective roadway markings" means lines and markers with
19reflective properties intended to promote vehicular and
20pedestrian safety.
21    "Reflective signage" means roadway and informational
22signage that has reflective properties to aid with vehicular
23and pedestrian safety.
24    "Responsible lighting principles" means the use of modern
25lighting technologies, including shielding, an upper limit on
26color temperature (2,700 Kelvin), on-off controls, dimming



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1controls, and motion sensors.
2    "Roadway lighting" means permanent outdoor luminaires that
3are specifically intended to illuminate roadways for safe
4vehicular and pedestrian traffic.
5    "Sky glow" means the brightening of the night sky due to
6inefficiently and improperly lit areas.
7    Section 15. Outdoor lighting control. All new luminaires
8purchased with State funds after the effective date of this
9Act or installed after the effective date of this Act on a
10structure or land that is owned and managed by the Department
11of Natural Resources, including roadways, facilities,
12properties, nonhabitable structures, monuments, and public
13right-of-way spaces, including sidewalks, with the intended
14purpose of outdoor illumination must follow the following
15outdoor lighting control requirements:
16        (1) Permanent outdoor luminaires must be fully
17    shielded with an IES BUG rating and produce less than 1% of
18    its emitted light above 80 degrees from the downward
19    vertical direction of nadir. Light should not be emitted
20    at an angle above 60 degrees from the downward vertical
21    direction of nadir.
22        (2) Luminaires must avoid light trespass by not
23    exceeding an illuminance of one lux as measured at ground
24    level both horizontally and vertically at the property
25    boundary.



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1        (3) Luminaires must have a correlated color
2    temperature less than or equal to 2,700 Kelvin. In
3    residential areas, dark sky locations, or environmentally
4    sensitive areas, such as State parks and outdoor
5    recreation facilities, correlated color temperature should
6    be no more than 2,200 Kelvin.
7        (4) Outdoor lighting must be minimized to no more than
8    25% above ANSI/IES standards or United States Department
9    of Transportation recommendations.
10        (5) Facade lighting must be minimized to no more than
11    25% above ANSI/IES standards, must project downward, and
12    must not violate the light trespass limits in paragraph
13    (2).
14        (6) When the installation or replacement of roadway
15    lighting is planned, the appropriate authority must
16    determine whether reflective roadway markings or
17    reflective signage is appropriate and safe for the
18    situation in lieu of outdoor lighting. Reflectorized
19    roadway markings, lines, warning signs, informational
20    signs or other passive means must be used for roadway
21    lighting, except at intersections of 2 or more streets or
22    highways, unless it is determined that adequate safety
23    cannot be achieved by reflective means.
24        (7) No artificial lighting above one lux, as measured
25    at ground level both horizontally and vertically, may
26    trespass onto land or waterways designated or managed as



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1    habitat, reserve, natural area, open space, or wilderness.
2    Section 20. Exceptions. This Act does not apply if:
3        (1) the luminaires are on a structure or land that is
4    owned, supported, funded, leased, or managed by the State
5    in a county or municipality that, by ordinance or
6    resolution, has adopted provisions that are equal to or
7    more stringent than the provisions of this Act;
8        (2) a federal law or regulation preempts this Act;
9        (3) a State agency determines a safety or security
10    need exists that cannot be addressed by any other method;
11        (4) fire, police, rescue, or repair personnel need
12    light for temporary emergencies or road repair work;
13        (5) it has been determined that a reasonable safety
14    and security interest exists at correctional or hospital
15    facilities that cannot be addressed by another method as
16    long as it complies with existing standards,
17    specifications, or policies;
18        (6) navigational lighting systems and other lighting
19    are necessary to comply with Federal Aviation
20    Administration airside operations or nautical safety;
21        (7) lamps greater than 2,700 Kelvin are used on active
22    sports grounds or show grounds, but only for the duration
23    of a practice, match, or event. Lamps emitting greater
24    than 2,700 Kelvin under this paragraph must be positioned,
25    angled, or shielded to prevent direct glare and light



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1    trespass onto neighboring property or properties, and the
2    positioning, angling, or shielding must limit upward light
3    emission to only the amount necessary to light the
4    sporting or grounds activity;
5        (8) flagpoles installed after the effective date of
6    this Act are lit by means of a downward-facing lamp and
7    using a lamp of 2,700 Kelvin or lower;
8        (9) flagpoles installed on or before the effective
9    date of this Act are upward-lit by partially shielded or
10    unshielded luminaires using a lamp of 2,200 Kelvin or
11    lower to minimize the impact of glare, light trespass, and
12    sky glow and are converted to conform to requirements upon
13    retrofitting;
14        (10) the luminaries are existing decorative and
15    ornamental lighting that serve historical purposes, but
16    replacement luminaries for the existing decorative and
17    ornamental lighting must meet the standards of this Act;
18    or
19        (11) the luminaries are temporary seasonal holiday
20    lighting lasting no longer than 45 days surrounding the
21    holiday season.
22    Section 25. Other laws. If this Act conflicts with any
23other federal law, State law, or local ordinance controlling
24lighting, outdoor luminaries, signage, outdoor advertising,
25displays, or devices that is more stringent than the Act, then



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1the federal law, State law, or local ordinance controls to the
2extent it is more stringent than the Act.
3    Section 99. Effective date. This Act takes effect January
41, 2025.