42 CFR § 426.100 - Basis and scope.

---
identifier: "/us/cfr/t42/s426.100"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "42 CFR § 426.100 - Basis and scope."
title_number: 42
title_name: "Public Health"
section_number: "426.100"
section_name: "Basis and scope."
chapter_name: "CENTERS FOR MEDICARE & MEDICAID SERVICES, DEPARTMENT OF HEALTH AND HUMAN SERVICES"
subchapter_number: "B"
subchapter_name: "MEDICARE PROGRAM"
part_number: "426"
part_name: "REVIEW OF NATIONAL COVERAGE DETERMINATIONS AND LOCAL COVERAGE DETERMINATIONS"
positive_law: false
currency: "2026-04-05"
last_updated: "2026-04-05"
format_version: "1.1.0"
generator: "[email protected]"
authority: "Secs. 1102 and 1871 of the Social Security Act (42 U.S.C. 1302 and 1395hh)"
regulatory_source: "68 FR 63716, Nov. 7, 2003, unless otherwise noted."
cfr_part: "426"
---


# 426.100 Basis and scope.

(a) *Basis.* This part implements sections 1869(f)(1) and (f)(2) of the Act, which provide for the review of LCDs, NCDs, and certain determinations that are deemed to be NCDs by statute.

(b) *Scope.* This subpart establishes the requirements and procedures for the review of LCDs and NCDs.