How long is a work authorization valid? The work authorization is valid for 90 days, or until you are notified of the test results, whichever occurs first. By Martin|2024-12-10T11:09:12-06:00December 10, 2024|Exam| Share This Story, Choose Your Platform! FacebookXRedditLinkedInWhatsAppTelegramTumblrPinterestVkXingEmail About the Author: Martin