U.S. flag

An official website of the United States government

TTB Scheduled System Outages Calendar

Email Get Email Updates


TTB will provide advanced notice (when possible) of issues that affect the availability of our online systems. Please subscribe to be notified about any disruptions to our online services. Besides our planned or unplanned schedule:

  • We perform scheduled maintenance daily from 4 to 6 a.m. ET
  • We perform system maintenance on the second Wednesday of each month.

Please contact the TTB Help Desk if you experience technical issues after any outage.


Upcoming System Outages

Wednesday, June 12 at 8 p.m. ETThursday, June 12 at 11:59 a.m. ETTTBOnline.gov (includes COLAs Online, COLA Public Registry, Formulas Online, and Permits Online) and my.ttb.gov (Foreign Producer, CBMA Claims Modules and Export Certificates Modules)Custom applications will be unavailable in order to perform system maintenance. You will be unable to connect to the listed custom applications during the maintenance window and will receive errors if you attempt to connect. Please exit the custom applications ahead of the maintenance window to avoid any loss of work.


Technical questions about our online applications should be directed to the TTB Help Desk. For general questions about formulas, labeling approval, or advertising use the Alcohol Labeling and Formulation Contact Us form. For general questions relating to permit applications, use the National Revenue Center contact us form.

Last updated: May 3, 2024
Maintained by: Office of Information Resources/Chief Information Officer