U.S. Code of Federal Regulations

Regulations most recently checked for updates: Jan 21, 2026

All TitlesTitle 20Chapter IIIPart 404Subpart B - Subpart B—Insured Status and Quarters of Coverage

GENERAL
§ 404.101 - Introduction.
§ 404.102 - Definitions.

FULLY INSURED STATUS
§ 404.110 - How we determine fully insured status.
§ 404.111 - When we consider a person fully insured based on World War II active military or naval service.
§ 404.112 - When we consider certain employees of private nonprofit organizations to be fully insured.
§ 404.115 - Table for determining the quarters of coverage you need to be fully insured.

CURRENTLY INSURED STATUS
§ 404.120 - How we determine currently insured status.

DISABILITY INSURED STATUS
§ 404.130 - How we determine disability insured status.
§ 404.131 - When you must have disability insured status.
§ 404.132 - How we determine fully insured status for a period of disability or disability insurance benefits.
§ 404.133 - When we give you quarters of coverage based on military service to establish a period of disability.

QUARTERS OF COVERAGE
§ 404.140 - What is a quarter of coverage.
§ 404.141 - How we credit quarters of coverage for calendar years before 1978.
§ 404.142 - How we credit self-employment income to calendar quarters for taxable years beginning before 1978.
§ 404.143 - How we credit quarters of coverage for calendar years after 1977.
§ 404.144 - How we credit self-employment income to calendar years for taxable years beginning after 1977.
§ 404.145 - When you acquire a quarter of coverage.
§ 404.146 - When a calendar quarter cannot be a quarter of coverage.
Appendix Appendix to - Appendix to Subpart B of Part 404—Quarter of Coverage Amounts for Calendar Years After 1978
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