The document is a guide on the Medicare, Medicaid, and SCHIP Extension Act of 2007 (MMSEA), which introduces mandatory reporting requirements for Responsible Reporting Entities (RREs) to protect Medicare’s interests during settlements. It outlines the historical context of Medicare as a secondary payer and the new liabilities and processes imposed by MMSEA on claims involving Medicare beneficiaries. Key steps include verifying beneficiary status, resolving liens, and ensuring accurate reporting to avoid penalties, emphasizing collaboration between RREs and plaintiff attorneys for effective compliance.