§ 8–2241.01. Definitions.

For purposes of this subchapter, the term:

(1) " Bird friendly materials" means a material or assembly that has been designed or treated to have a maximum material threat factor of 30.

(2) "Bird hazard installations" means monolithic glazing installations that provide a clear line of sight or mirrored surface on the exterior of buildings, including, awnings, handrails and guards, wind break panels, bus shelter enclosures, skywalk enclosures, and acoustic barriers made of glass or glass-like materials.

(3) "Commercial building" means income-producing property as identified under zoning classifications that would allow for such uses as office buildings, retail stores, restaurants, bars, taverns, and service facilities pursuant to Title 11 of the District of Columbia Municipal Regulations (11 DCMR § 100.1 et seq.).

(4) "Fly-through conditions" means one or more panels of glass or glass-like materials that provide a clear line of sight through such elements, creating the illusion of a void leading to the other side, including parallel glass or glass-like material elements when the distance between such elements is 60 feet or less, or a convergence of sides made of glass or glass-like materials creating a perpendicular, acute, or obtuse corner.

(5) "Glass or glass-like materials" includes tempered glass, spandrel glass, plexiglass, mirrored products, polished metal, or other glass materials or materials that are transparent or highly reflective.

(6)(A) "Institutional facility" means a facility owned or operated by an organization with a social, charitable, educational, or civic purpose. The term "institutional facility" includes schools, universities, laboratories, medical and healthcare facilities, residential care facilities and nursing homes, athletic facilities, penal institutions, galleries, performance venues, and museums.

(B) The term "institutional facility" does not include churches, mosques, temples, or other houses of worship.

(7) "Material threat factor" means a measure of a bird's ability to see and avoid a building material; provided, that such measure shall be in accordance with the American Bird Conservancy's Threat Factor Database or with the American Bird Conservancy's Bird-friendly Materials Evaluation Program test protocol.

(8) "Multi-unit residential building" means a residential building with 5 or more dwelling units.

(9) "Skywalk" means any above-grade enclosed walkway of any dimension that connects 2 or more buildings or parts of a building.

(10) "Substantially all" means 75% or more.