VOC Emissions Reporting Deadlines

VOC reporting deadlines align with calendar or fiscal years depending on jurisdiction, with most states requiring submission by March 31 following the reporting year. Facilities must compile emissions data from multiple source categories—process vents, storage tanks, loading operations—using approved methodologies like Method 21 or AP-42. Incomplete or inaccurate submissions trigger enforcement initiati.

Sources with emissions above threshold levels face more frequent reporting cycles and enhanced verification. New sources must report within 60 days of startup, often requiring pre-submission coordination with regulatory staff. Operators of tank farms, polymerization units, and olefin crackers must validate fugitive emission estimates using EPA-validated tools.

Data must be reconciled with stack test results and continuous monitoring systems where installed. Cross-checking with material balance records helps avoid discrepancies during audit reviews. Electronic submission via CERS or equivalent state portals is mandatory in most regions, requiring system compatibility checks well ahead of deadlines.

Late filings can invalidate permits or delay permit modifications. Operators should establish internal review timelines at least 45 days before submission, allowing time for QA/QC. Training on updated reporting forms and emission factor revisions should occur annually to prevent procedural errors.