To set an account out of Test Mode, navigate to Admin, select Carrier Accounts. 

 Find the Carrier Account using any of the Company or Carrier Filters or the Search Bar

Select to Edit the Carrier Account:

To turn the Carrier Account out of Test mode you would Scroll down to Test Mode, change the flag to No. 

  change to  

Scroll down and select Save Carrier Account to save you changes.

IMPORTANT: Removing test mode from a Carrier Account is only one part of exiting test mode. If you still see a yellow test mode banner after following these steps, you may also need to disable test mode at the USER LEVEL. See "How To Set A User In Test Mode" (Article #823) for instructions on changing your user-level test mode setting from "User is in test mode" to "Disabled from seeing test consignments". After making both changes, log out and log back in to refresh your session and remove the test mode banner.