l. General. 2. Becoming insured. 3. Cash retirement and auxiliary benefits; special age payments. 4. Survivors cash benefits. 5. Cash disability benefits and related disability protection. 6. Factors in evaluating disability. 7. Figuring the cash benefit rate. 8. Who are employees. 9. Special coverage provisions. 10. State and local employment. 11. Who are self-employed. 12. Net earnings from self-employment. 13. Wages. 14. Earnings records and tax reports. 15. Filing a claim. 16. Representative payees. 17. Evidence required to establish right to benefits. 18. Nonpayment of cash benefits. 19. Underpayments and overpayments. 20. Determination and appeals. 21. Hospital insurance protection. 22. Hospital insurance benefits. 23. Medical insurance enrollaments, coverage and premiums. 24 Medical insurance benefits. 25 Black lung benefits. 26 Supplemental security income. 27 Other benefit programs.