CDRH will make every effort to keep the system status up to date on this web page, but there may be occasions when maintenance will be needed on short notice. In addition, GUDID may be intermittently unavailable during weekends due to maintenance of other FDA systems which may impact GUDID. If you experience unavailability during weekends, and there is no posted downtime notification, we ask that you try again after about 15min.
Starting January 1, 2017, the GUDID pre-production system web application will only be available Monday-Friday, 8AM-10PM EST.
The GUDID HL7 SPL pre-production environment will remain available to receive test submissions 24 hours a day, seven days a week, and acknowledgements will continue to be sent to you via the FDA Electronic Submissions Gateways (ESG). However, you will only be able to review your test submissions via the GUDID web application during the times indicated above.
For all questions on UDI and GUDID, please contact the FDA UDI Help Desk.