CFR›Title 20›Chapter III›Part 404›Subpart G›Subject Group General Provisions ContainsSections 404.601–404.603CorpusDaily eCFRDisplayed edition2026-04-24Last updated2026-04-24 Sections 404.601 § 404.601 Introduction. 404.602 § 404.602 Definitions. 404.603 § 404.603 You must file an application to receive benefits. Previous Filing Date Based on Written Statement Filing Date Based on Written Statement Next Withdrawal of Application Withdrawal of Application