2. Provide a complete citation to a case from the U.S. Court of Appeals for the District of Columbia Circuit, decided in 2020, that addresses this issue. (2 points)

a. What did the court in this 2020 case decide regarding the regulations? Provide the holding of the case in one or two complete sentences(2 points)

b. Is this 2020 D.C. CIrcuit Court case still "good law"? Be specific in describing its status. How did you determine this? (2 points)

c. Describe the research steps you took to find the answers to Questions 1-3 above. Include complete citations to any secondary sources that you located and/or used in the process. (2 points)

d. Briefly (in 2-3 sentences) discussed the current federal substantive law (not just the procedural posture of the case you found) on this topic, based on your findings above. (2 points)