Key Dates and Timeline: MMSEA Enforcement Begins October 11, 2025
- rblackburn37
- 3 days ago
- 2 min read

The timeline for the enforcement of Civil Money Penalties (CMPs) under Section 111 is crucial for Responsible Reporting Entities (RREs) as it outlines key dates and deadlines that will impact Medicare Secondary Payer compliance.
Important Dates to Remember
October 11, 2023: The final rule regarding CMPs was published in the Federal Register, officially establishing the framework for the penalties.
October 11, 2024: Federal regulations related to Section 111 CMPs became applicable, marking the deadline for RREs to ensure compliance as penalties could potentially be assessed from this date onward.
October 11, 2025: This date marks the official start of enforcement for CMPs. RREs must be fully compliant with Section 111 reporting requirements by this time to avoid penalties.
January 2026: CMS will initiate quarterly audits of randomly selected Section 111 records, beginning this month. This will involve a sample of 250 records reviewed for compliance.
Implications of the Timeline
The effective enforcement date of October 11, 2025, underscores the urgency for RREs to adhere strictly to compliance requirements. Failure to report records within the specified timeframe can lead to significant penalties, which will increase based on the duration of noncompliance.
Practical Takeaways
Ensure Compliance: RREs should take action now to review their reporting processes, ensuring that all required information is submitted accurately and on time.
Document Timelines: Align your operations with the critical dates leading to October 11, 2025. This includes ensuring that all records related to TPOC and ORM are submitted within 365 days of the relevant event.
Prepare for Audits: Establish robust systems for data collection and reporting to be ready for the January 2026 audits. This proactive approach will minimize the risk of identifying noncompliance.
By being aware of these key dates and timelines, RREs will be better positioned to navigate the new enforcement landscape, ultimately enhancing their compliance with Medicare regulations.
Do you have questions about your responsibilities for compliance? Please let us know if you would like to discuss your MMSEA Section 111 reporting needs with an experienced team.


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