• § 401. Trust Funds

• § 401a. Omitted

• § 402. Old-age and survivors insurance benefit payments

• § 403. Reduction of insurance benefits

• § 404. Overpayments and underpayments

• § 405. Evidence, procedure, and certification for payments

• § 405a. Regulations pertaining to frequency or due dates of payments and reports under voluntary agreements covering State and local employees; effective date

• § 405b. Reducing identity fraud

• § 406. Representation of claimants before Commissioner

• § 407. Assignment of benefits

• § 408. Penalties

• § 409. “Wages” defined

• § 410. Definitions relating to employment

• § 410a. Transferred

• § 411. Definitions relating to self-employment

• § 412. Self-employment income credited to calendar years

• § 413. Quarter and quarter of coverage

• § 414. Insured status for purposes of old-age and survivors insurance benefits

• § 415. Computation of primary insurance amount

• § 416. Additional definitions

• § 417. Benefits for veterans

• § 418. Voluntary agreements for coverage of State and local employees

• § 418a. Voluntary agreements for coverage of Indian tribal council members

• § 419. Repealed.

• § 420. Disability provisions inapplicable if benefit rights impaired

• § 421. Disability determinations

• § 422. Rehabilitation services

• § 423. Disability insurance benefit payments

• § 424. Repealed.

• § 424a. Reduction of disability benefits

• § 425. Additional rules relating to benefits based on disability

• § 426. Entitlement to hospital insurance benefits

• § 426-1. End stage renal disease program

• § 426a. Transitional provision on eligibility of uninsured individuals for hospital insurance benefits

• § 427. Transitional insured status for purposes of old-age and survivors benefits

• § 428. Benefits at age 72 for certain uninsured individuals

• § 429. Benefits in case of members of uniformed services

• § 430. Adjustment of contribution and benefit base

• § 431. Benefits for certain individuals interned by United States during World War II

• § 432. Processing of tax data

• § 433. International agreements

• § 434. Demonstration project authority