The Daily Roundup – Monday, May 18, 2026

Effluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category-Unmanaged Combustion Residual Leachate

Proposed Rule  ● Economically Significant

Environmental Protection Agency, Office of Water

Implementing the Guiding and Establishing National Innovation for U.S. Stablecoins Act for the Issuance of Stablecoins by Entities Subject to the Jurisdiction of the National Credit Union Administration

Proposed Rule  ● Economically Significant

National Credit Union Administration

Revision of Tier 4 Criteria Pollutant Standards, Part 1: Amendments to Phase-In Schedule for Light-Duty and Medium-Duty Vehicles

Proposed Rule  ● Economically Significant

Environmental Protection Agency, Office of Air and Radiation

Modernizing NRC Regulations for Byproduct Material Use

Proposed Rule

Nuclear Regulatory Commission

Supplemental Disaster Assistance Programs, Marketing Assistance Loans, and Sugar Provisions

Final Rule  ● Economically Significant

Department of Agriculture, Farm Service Agency0560-AI84 · Received May 15, 2026

Assistance for Specialty Crop Farmers

Final Rule  ● Economically Significant

Department of Agriculture, Farm Service Agency0560-AI88 · Received May 15, 2026

Revision of Fee Schedules: Fee Recovery for FY 2026 [NRC-2023-0212]

Final Rule

Nuclear Regulatory Commission3150-AL12 · Received May 15, 2026

Amendments to the Trade-Through Rule

Proposed Rule  ● Economically Significant

Securities and Exchange Commission3235-AN50 · Received May 15, 2026

Patient Protection and Affordable Care Act, HHS Notice of Benefit and Payment Parameters for 2027; and Basic Health Program (CMS-9883)

Final Rule  ● Economically Significant  ● Consistent with Change

Department of Health and Human Services, Centers for Medicare & Medicaid Services0938-AV62 · Completed May 15, 2026

Rescission of Policy Regarding Denials in Settlements of Enforcement Actions

Final Rule  ● Consistent with Change

Securities and Exchange Commission3235-AN77 · Completed May 15, 2026

Technical Guidelines for the Production of Regenerative Agricultural Biofuel Feedstocks

Final Rule Stage

Department of Agriculture, Office of the Secretary0503-AA82

May 18, 2026 — Indigo Agriculture (Christopher Malone)

Special Areas: Roadless Area Conservation Repeal

Proposed Rule Stage

Department of Agriculture, Forest Service0596-AD66

May 19, 2026 — Yaak Valley Forest Council (Chris Bachman)

CY 2027 Revisions to Payment Policies under the Physician Fee Schedule and Other Revisions to Medicare Part B (CMS-1848)

Proposed Rule Stage  ● Economically Significant

Department of Health and Human Services, Centers for Medicare & Medicaid Services0938-AV82

May 20, 2026 — Holland & Knight (Miranda Franco) – Client: Convatec

Establishing State Community Engagement Requirements for Certain Individuals Under Section 1902(xx) of the Social Security Act (CMS-2454)

Interim Final Rule Stage  ● Economically Significant

Department of Health and Human Services, Centers for Medicare & Medicaid Services0938-AV98

May 19, 2026 — Children’s Hospital Association (Milena Berhane) – Client: The Partnership for Medicaid

Rescinding the Definition of "Harm" Under the Endangered Species Act

Final Rule Stage

Department of the Interior, Fish and Wildlife Service1018-BI38

May 20, 2026 — American Petroleum Institute (Mike Watson)

Regulations Pertaining to Endangered and Threatened Wildlife and Plants

Final Rule Stage

Department of the Interior, Fish and Wildlife Service1018-BI74

May 21, 2026 — American Petroleum Institute (Mike Watson)

Regulations for Designating Critical Habitat

Final Rule Stage

Department of the Interior, Fish and Wildlife Service1018-BI76

May 21, 2026 — American Petroleum Institute (Mike Watson)

Establishing a Fixed Time Period of Admission and an Extension of Stay Procedure for Nonimmigrant Academic Students, Exchange Visitors, and Representatives of Foreign Information Media

Final Rule Stage  ● Economically Significant

Department of Homeland Security, U.S. Immigration and Customs Enforcement1653-AA95

May 18, 2026 — Michael Clemens
May 20, 2026 — Association of Public and Land-grant Universities (Ashley Amian)

Phasedown of Hydrofluorocarbons: Reconsideration of Certain Regulatory Requirements Under the Technology Transitions Provisions of the American Innovation and Manufacturing Act of 2020

Final Rule Stage

Environmental Protection Agency, Office of Air and Radiation2060-AW39

May 21, 2026 — The Environmental Investigation Agency (EIA) (Julius Banks)
May 21, 2026 — Retail Industry Leaders Association (Susan Kirsch)

New Car Assessment Program, Rear Automatic Braking

Proposed Rule Stage

Department of Transportation, National Highway Traffic Safety Administration2127-ZA28

May 20, 2026 — MEMA, The Vehicle Suppliers Association (Jennifer Lewis)

Pipeline Safety: Breakout Tank Inspection Rule

Proposed Rule Stage  ● Economically Significant

Department of Transportation, Pipeline and Hazardous Materials Safety Administration2137-AG22

May 19, 2026 — Liquid Energy Pipeline Association (LEPA) & American Petroleum Institute (API) (John Stoody)