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The relevant sections of the law and regulations governing how Social Security determines your income-related Part B premium are:

• Section 1839(i) of the Social Security Act;
• Social Security Administration regulations, 20 CFR Part 418 Subpart B; and
• Centers for Medicare & Medicaid Services (CMS), Department of Health and Human Services (HHS) regulations, 42 CFR Part 408.20 - 408.27.

For more information, visit our website at www.socialsecurity.gov/mediinfo.htm, call us toll-free at 1-800-772-1213 (TTY 1-800-325-0778) or visit your local Social Security office.

To learn more about Medicare Part B coverage, visit www.medicare.gov.