Army Corps Advances Louisiana Storm Defenses in Routine Environmental Decision

2026-18317, Updated Definition of “Waters of the United States”

The purpose of this supplemental notice of proposed rulemaking is for the U.S. Environmental Protection Agency (EPA) and the Department of the Army ("the agencies") to supplement and seek additional comment on certain aspects of an earlier proposal, published on November 20, 2025, to revise the regulations defining the scope of waters federally covered under the Clean Water Act in light of the U.S. Supreme Court's 2023 decision in Sackett v. Environmental Protection Agency. As stated in the agencies' November 20, 2025 Notice of Proposed Rulemaking (NPRM), the agencies intend for this rulemaking to provide greater regulatory certainty and increase Clean Water Act program predictability and consistency by clarifying the definition of "waters of the United States." After consideration of the public comments received on the NPRM, the agencies are issuing this notice to supplement the NPRM with additional regulatory options on certain aspects of the proposed rule.

2025-20402, Updated Definition of “Waters of the United States”

The EPA and Army Corps are updating the rules that decide which waters are protected under the Clean Water Act, following a 2023 Supreme Court decision. This change helps everyone know exactly which waters are covered, making it easier to protect lakes, rivers, and wetlands while respecting state and tribal rights. People and businesses affected should share their thoughts by January 5, 2026, as this update could impact water projects and environmental protections.

2026-16359, Danger Zone: Pacific Ocean at Marine Corps Base Hawaii, Kaneohe Bay, Island of Oahu, Hawaii

The United States Army Corps of Engineers (Corps) is amending its regulations for an existing danger zone at the U.S. Marine Corps Ulupau Crater Weapons Training Range in the vicinity of Kaneohe Bay, Hawaii. The Marine Corps requested a change to the current hours that weapons firing may be conducted. This amendment is necessary in order to ensure public safety.

2026-16357, Restricted Area: Naval Weapons Station Seal Beach

The U.S. Army Corps of Engineers wants to update the restricted area rules at Naval Weapons Station Seal Beach in California. This change follows a big project that moved a public boating channel and added a new ammo pier, aiming to keep people safe and protect Navy operations. If you have thoughts, send your comments by September 10, 2026—no costs or fees involved!

2026-11786, Danger Zone; Waters of Carr Creek and Whitehall Bay in the Vicinity of the Naval Support Activity Annapolis

The U.S. Army Corps of Engineers is setting up three new danger zones in Carr Creek and Whitehall Bay near the Naval Support Activity Annapolis to keep everyone safe during Naval Academy firing range training. These zones will protect Sailors, Midshipmen, law enforcement, and boaters by restricting access when the range is active. The new rules kick in 30 days after being published, with no extra costs for the public.

2026-11283, Notice of Availability of the Record of Decision for the Final Environmental Impact Statement for the Dakota Access Pipeline, Lake Oahe Crossing, North Dakota

The U.S. Army Corps of Engineers has officially decided to allow the Dakota Access Pipeline to cross under Lake Oahe in North Dakota, but with extra safety rules. This affects local communities, the environment, and the pipeline company, ensuring the project moves forward carefully. The decision is now public, so everyone knows the plan and what comes next.

Previous: 2026-22313, Antidumping or Countervailing Duty Order, Finding, or Suspended Investigation; Advance Notification of Sunset Review

Every five years, the U.S. checks if certain trade duties should continue to protect American businesses from unfair foreign pricing or subsidies. For December 2026, no new reviews or investigations are starting, so no changes or money impacts are expected right now. If anyone wants to join future reviews, they need to act fast and follow specific deadlines.

Next: 2026-22315, Withdrawal of Notice of Intent To Prepare an Environmental Impact Statement, Port of Iberia, Louisiana

The U.S. Army Corps of Engineers is stopping the big Environmental Impact Statement for the Port of Iberia project in Louisiana and switching to a smaller Environmental Assessment instead. This means fewer worries about major environmental problems, and the project can move forward with less delay. Local communities, government agencies, and anyone interested should watch for updates coming soon about the new assessment and findings.