D. Petitions for Employment-Based. Immigrants and Priority Date Retention. 1. Description of Final Rule and Changes. From the NPRM. 2. rules (81 FR at –). SOCIAL SECURITY ADMINISTRATION. 20 CFR Part [Docket No. SSA––]. RIN –AH. Centers for Medicare & Medicaid Services. 42 CFR Parts , , , et al. Medicare and Medicaid Programs; Emergency Preparedness. Medicare Program; Revisions to. Payment Policies Under the Physician. Fee Schedule and Other Revisions to. Part B for CY ; Medicare. ASPE Assistant Secretary for Planning and. Evaluation CMS Centers for Medicare & Medicaid since (56 FR , September 26. payment rates for the nonexcepted items and services . internet at https://www. cumuseumofterror.com fdsys /. . Background and Rationale for Packaging.