Overdue SAN firmware
Vendor bulletin rates a fix Critical. MA-6 SLA requires application within the defined window; change is scheduled with EHR downtime coordination rather than left on a backlog.
Timely Maintenance
High Risk
Moderate
Medium Cost
MA-6 requires performing maintenance on system components within organization-defined time frames. Deferred patch windows, overdue biomed PM, and ignored disk failures turn into ePHI availability incidents — canceled clinics, diverted EDs, and ransomware recovery nightmares.
Control Objective
Complete preventive and corrective maintenance on ePHI-related components within defined SLAs so confidentiality, integrity, and availability controls remain effective.
Implementation Guidance
- Define maintenance time frames by criticality (EHR core, imaging, network, endpoints, biomed).
- Schedule preventive maintenance that aligns with clinical calendars and change freezes.
- Track corrective maintenance from detection to completion against SLAs.
- Include firmware, certificates, UPS/HVAC supporting systems, and not only servers.
- Escalate overdue Critical maintenance to leadership with risk acceptance if delayed.
- Coordinate vendor OEM response times in contracts for tier-1 clinical systems.
- Record completion evidence in CMDB/tickets for auditors.
- After maintenance, verify security controls still enabled (logging, encryption, AV).
Real-World Use Cases
How this control shows up in healthcare and HIPAA-covered environments.
Anesthesia machine PM past due
Clinical engineering dashboard flags missed PM. MA-6 governance treats networked device maintenance as in-scope for availability and security hygiene.
Certificate renewal lag
Patient portal cert expires because renewal was “next sprint.” MA-6 time frames for cert maintenance prevent encrypted-service outages.
Best Practices
- Criticality-based maintenance SLAs.
- Visible overdue queues.
- Clinical calendar coordination.
- Vendor response times in contracts.
- Post-maintenance control verification.
- Include environmental support systems.
Common Gaps & Violations
- Patch and PM backlogs without escalation.
- Biomed and IT maintenance tracked in silos.
- No defined time frames — only “as soon as possible.”
- Security disabled for maintenance and never re-enabled.
- Vendor missed SLAs with no follow-up.
Required Documentation
- Timely maintenance standard (MA-6)
- Maintenance time frames by system tier
- Preventive maintenance schedules
- Corrective maintenance SLA reports
- Vendor maintenance response commitments
How to Test & Validate
- Sample Critical systems for maintenance completed within policy time frames.
- Review overdue queue and escalation evidence.
- Confirm biomed PM compliance for networked devices sample.
- Check post-maintenance verification steps on a recent change.
- Compare vendor contract SLAs to actual response times.
Audit Considerations
Availability is a HIPAA security objective. Chronic deferred maintenance on ePHI systems signals weak operations and often correlates with incident severity.
HIPAA Mapping
How this NIST control supports HIPAA Security Rule expectations.
- 164.308(a)(7) Contingency Plan — timely maintenance reduces the likelihood and impact of contingency activation.
- 164.310(a) Facility Access / maintenance of physical systems supporting ePHI environments.
- 164.312 Technical safeguards — access, audit, and integrity mechanisms require maintained platforms.
- 164.306(a) Ensure CIA of ePHI — maintenance supports availability and integrity.
Compliance Tips
- Publish a weekly Critical overdue-maintenance report to IT and clinical engineering leaders.
- Tie MA-6 SLAs to SI-2 patch timelines for security updates.
- Capture “controls re-enabled” as a mandatory ticket checklist item.
Frequently Asked Questions
How is MA-6 different from SI-2?
SI-2 focuses on flaw remediation (patches); MA-6 covers timely maintenance broadly — preventive, corrective, and vendor maintenance within defined time frames.
Who defines the time frames?
The organization, based on risk and clinical criticality — document them and measure compliance.
Does MA-6 apply to SaaS EHR?
You still maintain your side (endpoints, identity, interfaces, local appliances) and oversee vendor maintenance commitments via contracts and monitoring.
References & Resources
- NIST SP 800-53 Rev. 5 — MA-6
- Related controls: MA-2, SI-2, CP-2, CM-3, SA-22
Related Guidelines
Related controls that commonly accompany MA-6.
Need Help Implementing MA-6?
Our auditors map NIST SP 800-53 controls to your HIPAA Security Rule program — policies, technical evidence, and audit readiness.