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The 2025 Q1 Reporting Period will end on April 30, 2025
April 24, 2025
The 2025 Q1 Reporting Period begins on April 1, 2025
March 25, 2025
EPA Host System Unavailable March 7-8, 2025 for Scheduled Maintenance
March 3, 2025
Install New Software for Stand-alone Database
Install New Software for Shared Database
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Update Existing Software for Shared Database
System Requirements
Latest Release Information
Introduction to ECMPS
Tutorials
Webinars
Reporting Documentation
Select a Help Topic
FAQs
Request Technical Support
Resubmit Data Request Form
Known Issues
EPA Host System Status
Online Client Tool Help File
Requested Enhancements
2025 Q1 Emission Submissions Received
65%
Last Updated: April 24, 2025, 9:30 AM ET
65%
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