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Below you will find a list of FAQs on intervention. If you don’t find what you are looking for, please contact OPP and we will be happy to assist you further. 

Nos. 20-1045, et al. (D.C. Cir. filed August 3, 2021)

(Addressing challenges to Commission’s review of projects’ greenhouse gas emission and environmental justice impacts.)

Below is a step-by-step instruction guide for the Office of Public Participation (OPP) website to explain how the public can intervene in proceedings. If you don’t find what you are looking for, please contact 

The U.S. Court of Appeals for the D.C.

Commissioner James Danly Statement
August 3, 2021
Docket No. ER17-1821-004

Docket Nos.: OR21-10, AD21-16