2023 New York Laws › PBB - Public Buildings › Article 5 - Public Buildings Generally › 143 - Lighting Restrictions.

§ 143. Lighting restrictions. 1. Definitions. As used in this section:
a. "Direct light" means light emitted by a fixture from the lamp, from
  a reflector, or through a refractor.
b.  "Facade  lighting"  means  permanent  outdoor  fixtures  that  are
  specifically intended to illuminate the exterior surfaces  of  buildings
  or structures.
c.  "Fully  shielded  fixture"  means  a fixture that allows no direct
  light from the fixture above a horizontal plane  through  the  fixture's
  lowest light-emitting part, in its mounted position.
d. "Fixture lumens" means total lumens emitted by a fixture.
e.  "Glare" means light emitted by a fixture that causes discomfort or
  reduced visibility.
f. "Illuminance" means the luminous power incident per unit area of  a
  surface.
g.  "Lamp"  means  a  light  bulb or other component of a fixture that
  changes electricity into visible light.
h. "Light trespass" means light that falls beyond the property  it  is
  intended to illuminate.
i.  "Lumen"  means  a  standard unit of measurement of the quantity of
  light emitted from a lamp.
j. "Fixture" means a complete lighting unit, including a lamp together
  with the parts designed to distribute the light, to position and protect
  the lamp and to connect the lamp to the power supply.
k. "Ornamental roadway lighting" means a roadway lighting fixture that
  serves a decorative function in addition to a roadway lighting function,
  having an historical period appearance or decorative appearance.
l.   "Parking-lot   lighting"   means   permanent   outdoor   fixtures
  specifically intended to illuminate uncovered vehicle parking areas.
m.  "Permanent outdoor fixture" means a fixture for use in an exterior
  environment installed with mounting not intended for relocation.
n. "Roadway lighting" means permanent  outdoor  fixtures  specifically
  intended to illuminate public roadways.
o.  "Sky  glow"  means a condition caused by light directed upwards or
  sideways reducing one's ability to view the night sky.
p.  "State  agency"  means  any  state  department,   office,   board,
  commission,  agency, or a public authority or public benefit corporation
  at least one of whose members is appointed by the governor.
2. No state agency operating in the state shall install or cause to be
  installed any new or replacement permanent outdoor  fixture  unless  the
  following conditions are met:
a.  In  the  case of roadway lighting or parking-lot lighting; whether
  mounted to poles, buildings or other structures, the  fixture  is  fully
  shielded.
b.  In the case of building-mounted fixtures not specifically intended
  for roadway lighting, parking-lot  lighting,  or  facade  lighting,  the
  fixture  is  fully  shielded  when its initial fixture lumens is greater
  than three thousand lumens.
c. In the case of facade lighting, the fixture is shielded  to  reduce
  glare, sky glow, and light trespass to the greatest extent possible.
d.  In  the  case of ornamental roadway lighting fixtures, the fixture
  allows no more than seven  hundred  lumens  from  the  fixture  above  a
  horizontal plane through the fixture's lowest light emitting part.
e. For illumination by new permanent outdoor fixtures for applications
  described  in  paragraph  a,  b,  c  or  d  of  this  subdivision,  only
  illuminance levels that are no  greater  than  those  required  for  the
  intended  purpose may be used, as established by the commissioner of the
  office of general  services  in  consultation  with  the  department  of
  transportation  and  the  New York State Energy Research and Development

  Authority, and given due consideration to  lighting  industry  standards
  and practices.
f.  In the case of roadway lighting unassociated with intersections of
  two or more streets or highways, the department  of  transportation  has
  determined  that the purpose of the lighting installation or replacement
  cannot be achieved by installation  of  reflectorized  roadway  markers,
  lines, warnings or informational signs, or other passive means.
3. This section shall not apply:
a. if a federal law, rule or regulation preempts state law;
b.  if  the  outdoor lighting fixture is used temporarily by emergency
  personnel requiring additional illumination for emergency procedures  or
  temporarily used by repair personnel for road repair;
c.  to  navigational lighting systems and other lighting necessary for
  aviation and nautical safety;
d. to lighting for athletic playing areas; provided, however, that all
  such lighting shall be selected and installed  to  shield  the  lamp  or
  lamps  from direct view and to minimize upward lighting and glare to the
  greatest extent possible;
e. if the state agency determines a safety  or  security  need  exists
  that cannot be addressed by any other method;
f.  to  the  replacement  of  a previously installed permanent outdoor
  fixture that is  destroyed,  damaged  or  inoperative,  has  experienced
  electrical  failure  due  to  failed  components,  or  requires standard
  maintenance;
g. to lighting intended for tunnels and roadway underpasses; or
h. if the combined cost of acquiring and operating a fixture complying
  with paragraphs a, b and c of this  subdivision  is  more  than  fifteen
  percent  greater  than  the  cost  of acquiring and operating comparable
  non-compliant fixtures over the life of the lighting  system  and  if  a
  written  determination  with  findings  has  been made that no compliant
  fixture exists that would meet the cost limitation.
4. The office of general services, in consultation with the department
  of transportation and the New York state energy research and development
  authority, and given due consideration to  lighting  industry  standards
  and  practices,  shall  establish rules and regulations to implement the
  provisions of this section.