This proposed rule addresses: changes to the physician fee schedule (PFS); other changes to Medicare Part B payment policies to ensure that payment systems are updated to reflect changes in medical practice, relative value of services, and changes in the statute; codification of establishment of new policies for: the Medicare Prescription Drug Inflation Rebate Program under the Inflation Reduction Act of 2022; the Ambulatory Specialty Model; updates to drugs and biological products paid under Part B; Medicare Shared Savings Program requirements; updates to the Quality Payment Program; updates to policies for Rural Health Clinics and Federally Qualified Health Centers; update to the Ambulance Fee Schedule regulations; codification of the Inflation Reduction Act and Consolidated Appropriations Act, 2026 provisions; updates to Clinical Laboratory Fee Schedule regulations; updates to the Medicare Promoting Interoperability Program.

The U.S. Nuclear Regulatory Commission (NRC) is proposing to amend its regulations that govern its standards for protection against radiation. These proposed revisions would address section 5(b) of Executive Order 14300, "Ordering the Reform of the Nuclear Regulatory Commission," and would reflect the NRC's experience and other developments in the field of radiation protection since the NRC's last major revisions to these standards in 1991. In addition, the NRC is issuing for public comment draft implementing guidance.

This proposed rule would revise the Medicare Hospital Outpatient Prospective Payment System (OPPS) and the Medicare Ambulatory Surgical Center (ASC) payment system for calendar year 2027 based on our continuing experience with these systems. We also describe the changes to the amounts and factors used to determine the payment rates for Medicare services paid under the OPPS and those paid under the ASC payment systems. In addition, this proposed rule would update and refine the requirements for the Hospital Outpatient Quality Reporting Program and the Ambulatory Surgical Center Quality Reporting Program. There are no changes to the Rural Emergency Hospital Quality Reporting Program. We propose to expand the prior authorization requirement to include additional Botulinum Toxin Injection services. We also propose to implement certain provisions of the Consolidated Appropriations Act, 2026, for off-campus outpatient departments of a provider. In addition, this proposed rule announces notices of closure of teaching hospitals and opportunities to apply for available slots. This rule also requests information regarding potential approaches to improve comparability and standardization, particularly for complex contracting methodologies, of the HPT information reported in machine- readable files and consumer-friendly displays. We propose hospital AOs with deeming authority to assess compliance with certain Emergency Medical Treatment and Labor Act (EMTALA) administrative requirements during accreditation and reaccreditation surveys. Finally, we are soliciting comments on a potential separate payment under the Inpatient Prospective Payment System (IPPS) for domestic procurement of personal protective equipment and essential medicines.