D.C. Mun. Regs. tit. 11, r. 11-U804
Any use established in a PDR zone that is not permitted in any non-PDR zone and any uses accessory to those uses shall be operated so as to fully comply with the applicable environmental standards and requirements of Title 20 DCMR, Environment.
The volume of sound inherently and recurrently generated shall not exceed the maximum permissible sound levels established in Title 20 DCMR, Chapter 27, Noise Control, and Chapter 28, Maximum Noise Levels, at any point along the boundaries of the zone district in which the use is located.
The emission of any odorous gases or other odorous matter or steam in quantities that are offensive or noisome at any point along the boundaries of the zone district in which the use is located shall be prohibited.
No noxious, toxic, or corrosive fumes or gases shall be permitted to escape or to be discharged from any use permitted in a PDR zone.
No objectionable amounts of cinders, dust, or fly-ash shall be permitted to escape or to be discharged from any use permitted in a PDR zone.
No direct or reflected glare or heat from any source shall be detectable in objectionable amounts beyond the boundaries of the zone district in which the use is located.
Every use shall be operated so that ground vibration inherently and recurrently generated is not perceptible, without instruments, at any point along any boundary of the zone district in which the use is located.
The use of barbed or razor wire adjacent to any residentially zoned land shall be prohibited.
Any back-up generators or power systems shall be either:
D.C. Mun. Regs. tit. 11, r. 11-U804