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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
The 2024 Q4 Reporting Period will end on January 30, 2025
January 27, 2025
Install New Software for Stand-alone Database
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Update Existing Software for Shared Database
System Requirements
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Introduction to ECMPS
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Reporting Documentation
Select a Help Topic
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Request Technical Support
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Known Issues
EPA Host System Status
Online Client Tool Help File
Requested Enhancements
2025 Q1 Emission Submissions Received
41%
Last Updated: April 17, 2025, 5:30 PM ET
41%
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