Catskill Mountainkeeper, Inc. v. United States Federal Energy Regulatory Commission
| CATSKILL MOUNTAINKEEPER, INC., CLEAN AIR COUNCIL, DELAWARE-OTSEGO AUDUBON SOCIETY, INC., DELAWARE RIVERKEEPER NETWORK, MAYA K. VAN ROSSUM, the Delaware Riverkeeper, RIVERKEEPER, INC., SIERRA CLUB, WATERKEEPER ALLIANCE, CONSTITUTION PIPELINE COMPANY LLC and IROQUOIS GAS TRANSMISSION SYSTEM LP |
| UNITED STATES FEDERAL ENERGY REGULATORY COMMISSION |
| 26-1387 |
| May 19, 2026 |
| U.S. Court of Appeals, Second Circuit |
| Other |
Docket Report
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| Filing 26 MOTION ORDER, granting motion for extension of time to 07/27/2026, to file Petitioners' opposition, at docket entry 25, on behalf of Petitioner Catskill Mountainkeeper, Inc., Petitioner Clean Air Council, Petitioner Delaware-Otsego Audubon Society, Inc., Petitioner Delaware Riverkeeper Network, Petitioner Maya K. van Rossum, Petitioner Riverkeeper, Inc., Petitioner Sierra Club, Petitioner Waterkeeper Alliance. Respondent's reply is due by 08/17/2026, by SALM, FILED. [Entered: 06/24/2026 04:04 PM] [Edited: 07/08/2026 11:55 AM] |
| Filing 27 PAPERS, proposed opposition, on behalf of Movants Constitution Pipeline Company, LLC, and Iroquois Gas Transmission System, LP, RECEIVED. [Entered: 06/26/2026 05:23 PM] [Edited: 06/26/2026 05:47 PM] |
| Filing 25 MOTION, for extension of time, on behalf of Petitioner Catskill Mountainkeeper, Inc., Petitioner Clean Air Council, Petitioner Delaware-Otsego Audubon Society, Inc., Petitioner Delaware Riverkeeper Network, Petitioner Maya K. van Rossum, Petitioner Riverkeeper, Inc., Petitioner Sierra Club, Petitioner Waterkeeper Alliance, FILED. Service date 06/18/2026 by ACMS. [Entered: 06/18/2026 03:34 PM] |
| Filing 24 ATTORNEY, Ann Jaworski, for Petitioner Catskill Mountainkeeper, Inc., Petitioner Clean Air Council, Petitioner Delaware Riverkeeper Network, Petitioner Delaware-Otsego Audubon Society, Inc., Petitioner Maya K. van Rossum, Petitioner Riverkeeper, Inc., Petitioner Sierra Club, Petitioner Waterkeeper Alliance, ADDED. [Entered: 06/17/2026 04:57 PM] |
| Filing 23 NEW PARTY, Movant Constitution Pipeline Company LLC, Iroquois Gas Transmission System LP, ADDED. [Entered: 06/17/2026 04:46 PM] |
| Filing 22 NOTICE OF APPEARANCE AS SUBSTITUTE COUNSEL/ADDITIONAL COUNSEL, on behalf of Catskill Mountainkeeper, Inc., Clean Air Council, Delaware Riverkeeper Network, Delaware-Otsego Audubon Society, Inc., Maya K. van Rossum, Riverkeeper, Inc., Sierra Club, Waterkeeper Alliance, FILED. [Entered: 06/17/2026 01:12 PM] |
| Filing 21 MOTION, for leave to intervene, on behalf of Movant Iriquois Gas Transmission System L.P., FILED. Service date 06/16/2026 by ACMS. [Entered: 06/16/2026 07:09 PM] |
| Filing 20 ATTORNEY, Matthew Silverman, as additional counsel for Petitioners, ADDED. [Entered: 06/16/2026 04:38 PM] [Edited: 07/08/2026 11:54 AM] |
| Filing 19 NOTICE OF APPEARANCE AS SUBSTITUTE COUNSEL/ADDITIONAL COUNSEL, on behalf of Catskill Mountainkeeper, Inc., Clean Air Council, Delaware Riverkeeper Network, Delaware-Otsego Audubon Society, Inc., Maya K. van Rossum, Riverkeeper, Inc., Sierra Club, Waterkeeper Alliance, FILED. [Entered: 06/16/2026 10:52 AM] |
| Filing 18 NEW CASE MANAGER, Elizabeth Munoz, ASSIGNED. [Entered: 06/16/2026 10:10 AM] |
| Filing 17 OPPOSITION, to Motion to consolidate appeals, to hold appeal in abeyance, at docket entry 13, on behalf of Respondent United States Federal Energy Regulatory Commission, FILED. Service date 06/15/2026 by ACMS. [Entered: 06/15/2026 02:16 PM] |
| Filing 16 MOTION, to dismiss, on behalf of Respondent United States Federal Energy Regulatory Commission, FILED. Service date 06/15/2026 by ACMS. [Entered: 06/15/2026 02:06 PM] |
| Filing 15 MOTION, for leave to intervene, on behalf of Movant Constitution Pipeline Company, LLC, FILED. Service date 06/12/2026 by ACMS. [Entered: 06/12/2026 04:10 PM] |
| Filing 14 ACKNOWLEDGMENT AND NOTICE OF APPEARANCE, on behalf of Respondent United States Federal Energy Regulatory Commission, FILED. Service date 06/11/2026 by ACMS. [Entered: 06/11/2026 11:17 AM] |
| Filing 13 MOTION, to consolidate appeals, to hold appeal in abeyance, on behalf of Petitioner Catskill Mountainkeeper, Inc., Petitioner Clean Air Council, Petitioner Delaware-Otsego Audubon Society, Inc., Petitioner Delaware Riverkeeper Network, Petitioner Maya K. van Rossum, Petitioner Riverkeeper, Inc., Petitioner Sierra Club, Petitioner Waterkeeper Alliance, FILED. Service date 06/10/2026 by ACMS. [Entered: 06/10/2026 10:32 AM] |
| Filing 12 CURED DEFECTIVE DOCUMENT, Notice of Appearance, at entry 8, on behalf of Respondent United States Federal Energy Regulatory Commission, FILED. [Entered: 06/05/2026 02:43 PM] |
| Filing 11 DEFECTIVE DOCUMENT, Notice of Appearance, at docket entry 9, on behalf of Respondent United States Federal Energy Regulatory Commission, FILED. [Entered: 06/05/2026 02:41 PM] |
| Filing 10 ATTORNEY, Scott Ediger, for Respondent United States Federal Energy Regulatory Commission, ADDED. [Entered: 06/05/2026 02:36 PM] |
| Filing 9 NOTICE OF APPEARANCE AS SUBSTITUTE COUNSEL/ADDITIONAL COUNSEL, on behalf of United States Federal Energy Regulatory Commission, FILED. [Entered: 06/04/2026 09:14 AM] |
| Filing 8 NOTICE OF APPEARANCE AS SUBSTITUTE COUNSEL/ADDITIONAL COUNSEL, on behalf of United States Federal Energy Regulatory Commission, FILED. [Entered: 06/04/2026 08:52 AM] |
| Filing 7 FORM C-A, on behalf of Petitioner Catskill Mountainkeeper, Inc., Petitioner Clean Air Council, Petitioner Delaware-Otsego Audubon Society, Inc., Petitioner Delaware Riverkeeper Network, Petitioner Maya K. van Rossum, Petitioner Riverkeeper, Inc., Petitioner Sierra Club, Petitioner Waterkeeper Alliance, FILED. Service date 06/02/2026 by ACMS. [Entered: 06/02/2026 03:49 PM] |
| Filing 6 ACKNOWLEDGMENT AND NOTICE OF APPEARANCE, on behalf of Petitioner Catskill Mountainkeeper, Inc., Petitioner Clean Air Council, Petitioner Delaware-Otsego Audubon Society, Inc., Petitioner Delaware Riverkeeper Network, Petitioner Maya K. van Rossum, Petitioner Riverkeeper, Inc., Petitioner Sierra Club, Petitioner Waterkeeper Alliance, FILED. Service date 06/02/2026 by ACMS. [Entered: 06/02/2026 03:47 PM] |
| Filing 5 AGENCY DECISION AND ORDER dated 01/23/2026, RECEIVED. [Entered: 05/20/2026 11:59 AM] |
| Filing 4 PETITION FOR REVIEW OF AGENCY ORDER, SERVED. [Entered: 05/19/2026 04:57 PM] [Edited: 05/19/2026 08:05 PM] |
| Filing 3 PETITION FOR REVIEW OF AGENCY ORDER, on behalf of Petitioner Catskill Mountainkeeper, Inc., Petitioner Clean Air Council, Petitioner Delaware Riverkeeper Network, Petitioner Delaware-Otsego Audubon Society, Inc., Petitioner Maya K. van Rossum, Petitioner Riverkeeper, Inc., Petitioner Sierra Club, Petitioner Waterkeeper Alliance, OPENED. [Entered: 05/19/2026 04:54 PM] [Edited: 05/19/2026 08:03 PM] |
| Filing 2 PAYMENT OF DOCKETING FEE, on behalf of Petitioner Catskill Mountainkeeper, Inc., Petitioner Clean Air Council, Petitioner Delaware Riverkeeper Network, Petitioner Delaware-Otsego Audubon Society, Inc., Petitioner Maya K. van Rossum, Petitioner Riverkeeper, Inc., Petitioner Sierra Club, Petitioner Waterkeeper Alliance, USCA receipt # A02-4309-ACMS, FILED. [Entered: 05/19/2026 04:49 PM] [Edited: 05/19/2026 08:06 PM] |
| Filing 1 PETITION FOR REVIEW OF AGENCY ORDER, on behalf of Petitioner Catskill Mountainkeeper, Inc., Petitioner Clean Air Council, Petitioner Delaware Riverkeeper Network, Petitioner Delaware-Otsego Audubon Society, Inc., Petitioner Maya K. van Rossum, Petitioner Riverkeeper, Inc., Petitioner Sierra Club, Petitioner Waterkeeper Alliance, FILED. [Entered: 05/19/2026 04:48 PM] [Edited: 05/19/2026 08:06 PM] |
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