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The Controlled Substance Ordering System (CSOS) certificate retrieval services will be unavailable on Friday, December 06, 2024, 6:00 PM, through Sunday, December 08, 2024 5:00 PM due to maintenance. If you have any questions, please contact the CSOS helpdesk
at 1-877-DEA-ECOM (1-877-332-3266).


Read about upcoming enhancements to CSOS here.

We are resolving an issue with the NFLIS DQS functionality. We anticipate the problem will be resolved soon.

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