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SAVE THE DATE: April 19-22, 2027

Join us in Fort Lauderdale, FL for the 2027 CERIS Spring Conference as we celebrate 45 years of NPIRS with system updates, insights, and workshops. More details coming soon!

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Make Your Experience Count

We invite all NPIRS and ALSTAR users to showcase the impact of these platforms by submitting a brief testimonial, available under the Contact dropdown on the NPIRS homepage when logged in. Your feedback helps highlight system value and supports reporting, training, leadership insights, and future enhancements.

Design the 2027 CERIS Conference T-Shirt!

Help us celebrate NPIRS' 45th Anniversary with an original t-shirt design for the 2027 CERIS Conference (April 19–22, Fort Lauderdale, FL). The winning design will be featured on the official conference shirt!

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Data Quality Report Form









A screen shot of NPIRS output or a site download containing suspect data may be attached as a .CSV, .XLSX, .PDF, .DOC, .DOCX, .TXT, .JPG, .TIF or .PNG file. File upload is not required.

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Data Quality

The U.S. EPA, state regulatory agencies, and NPIRS are dedicated to delivering timely, accurate pesticide registration data to both our members and the public. As part of this shared commitment to data quality, NPIRS has implemented a reporting process for users to notify us of any data discrepancies found on our websites.

Data quality issues may arise during processing or may exist within the source data itself. When a report is submitted, NPIRS staff review the information to verify the nature and validity of the issue. If further action is required, the concern is forwarded to the U.S. EPA or the appropriate state regulatory agency for additional review and potential correction.

Please use the Data Quality Report Form on this page to provide the requested details, including a clear description of the issue. Fields marked with an asterisk (*) are required.