{"data":{"id":"us/42-cfr-412.270","jurisdiction":"us","citation":"42 CFR 412.270","heading":"Witnesses.","body":"Witnesses at an oral hearing testify under oath or affirmation, unless excused by the MGCRB for cause. The MGCRB may examine the witnesses and may allow the parties or their representatives to also examine any witnesses called.","path":["Title 42—Public Health","CHAPTER IV—CENTERS FOR MEDICARE \u0026 MEDICAID SERVICES, DEPARTMENT OF HEALTH AND HUMAN SERVICES","SUBCHAPTER B—MEDICARE PROGRAM","PART 412—PROSPECTIVE PAYMENT SYSTEMS FOR INPATIENT HOSPITAL SERVICES","Subpart L—The Medicare Geographic Classification Review Board"],"source_url":"https://www.ecfr.gov/api/versioner/v1/full/2026-08-25/title-42.xml","current_through":"2026-08-25","vintage":"","retrieved_at":"2026-08-27T02:26:11Z","sha256":"31f272662526780aff04a5b3bf8b0793676101175c1e5d1d7ad6ea835cec26d2","source_id":"us-cfr","stale":true,"prev":"us/42-cfr-412.268","next":"us/42-cfr-412.272"},"notice":"GroundRules: Original legal text. Not legal advice."}