{"data":{"id":"us/20-cfr-418.1320","jurisdiction":"us","citation":"20 CFR 418.1320","heading":"What is the effect of an initial determination?","body":"An initial determination is binding unless you request a reconsideration within the time period described in §§ 404.909 and 404.911 of this chapter or we revise the initial determination or issue a new initial determination.","path":["Title 20—Employees' Benefits","CHAPTER III—SOCIAL SECURITY ADMINISTRATION","PART 418—MEDICARE SUBSIDIES","Subpart B—Medicare Part B Income-Related Monthly Adjustment Amount"],"source_url":"https://www.ecfr.gov/api/versioner/v1/full/2026-08-25/title-20.xml","current_through":"2026-08-25","vintage":"","retrieved_at":"2026-08-27T02:24:45Z","sha256":"749c22347045623886048baab650ac302941966e8e7580639db934317b21bc1c","source_id":"us-cfr","stale":true,"prev":"us/20-cfr-418.1315","next":"us/20-cfr-418.1322"},"notice":"GroundRules: Original legal text. Not legal advice."}