The U.S. aircraft register, updated daily
Special conditions · aircraft

Special Conditions: Aerospace Design and Compliance, LLC, Bombardier, Inc. \nModel CL-600-2B19 Airplane; Installation of a Therapeutic Oxygen System for \nMedical Use

Special conditions are rules the FAA writes for one design when the standard certification rules do not cover something new about it. These were published August 11, 2020 for Aerospace Design and Compliance, covering the CL-600-2B19. System: emergency equipment.

What it applies to

Applicant
Aerospace Design and Compliance
Makes
Bombardier
Models
CL-600-2B19
On this site
Bombardier CL-600 Challenger and CRJ 1,656 registered
Published
August 11, 2020
Effective
August 11, 2020
The FAA's document
On the FAA's site

The FAA's summary their words, unchanged

These special conditions are issued for the Bombardier Inc. (Bombardier) Model CL-600-2B19 airplane. This airplane, as modified by Aerospace Design and Compliance, LLC (Aerospace Design and Compliance), will have a novel or unusual design feature when compared to the state of technology envisioned in the airworthiness standards for transport category airplanes. The design feature is an installation of a therapeutic oxygen system for medical use. The applicable airworthiness regulations do not contain adequate or appropriate safety standards for this design feature. These special conditions contain the additional safety standards that the Administrator considers necessary to establish a level of safety equivalent to that established by the existing airworthiness standards.

Source: FAA special conditions (final) from the Dynamic Regulatory System; the Federal Register carries the same notices.