Federal regulations

PHMSA proposes raising the monetary threshold for Operator Identification Number notifications on gas, hazardous liquid, and carbon dioxide pipelines during construction and maintenance work, with annual inflation adjustments.

Postal Regulatory Commission notices a negotiated service agreement filing from the Postal Service and invites public comment on the new postal products offering.

NPRM proposes to remove exclusions for nondestructive-testing-qualified welders and welding operators working on compressor station pipe and components in pipeline safety regulations.

FDA releases its annual report on drug and biologics firms' performance in meeting postmarketing requirements and commitments mandated under the Federal Food, Drug, and Cosmetic Act.

Bureau of Safety and Environmental Enforcement renews its information collection requirements for Applications for Permits to Drill and supporting documentation under the Paperwork Reduction Act of 1995.

U.S. Commerce Department corrects its April 9, 2026 final countervailing duty administrative review on Turkish common alloy aluminum sheet by adding the omitted list of non-selected company subsidy rates.

U.S. Department of Commerce finds certain chassis and subassemblies from Mexico sold at less than fair value, covering imports during January 1–December 31, 2024.

PHMSA proposes aligning post-issuance administrative challenge procedures between its Office of Pipeline Safety and Office of Hazardous Materials Safety regulatory frameworks.

Federal agencies must prepare environmental impact statements for proposed major actions significantly affecting the environment before proceeding with project approval or funding.

FAA issues revised Airworthiness Directive for Dassault Aviation Model MYSTERE-FALCON 20-C5, 20-D5, 20-E5, and 20-F5 airplanes requiring updated maintenance and inspection program airworthiness limitations.

The Drug Enforcement Administration places MDMB-4en-PINACA in Schedule I of the Controlled Substances Act, imposing regulatory controls and criminal sanctions on manufacturers, distributors, importers, exporters, and possessors.

Consumer Product Safety Commission seeks public comment on extending its information collection approval for the Safety Standard for Adult Portable Bed Rails; OMB approval expires August 31, 2026.

FAA airworthiness directive requires Bombardier BD-700-1A10 and BD-700-1A11 airplane operators to revise flight manuals with corrected approach speed and landing distance data for SLAT FAIL procedures.

Surface Transportation Board adopts the revised second quarter 2026 Rail Cost Adjustment Factor and cost index for railroad rate calculations.

Federal agencies seek public comment on information collection requests affecting small businesses; submit feedback by the displayed OMB control number deadline.