How long is my D4 medical form valid for after my medical? The form is valid for four months. It must reach DVLA within four months of the medical otherwise it is no use to DVLA. By admin|2020-07-26T14:00:21+01:00July 26, 2020|DVLA & Licencing|Comments Off on How long is my D4 medical form valid for after my medical? Share This Story, Choose Your Platform! FacebookTwitterRedditLinkedInWhatsAppTelegramTumblrPinterestVkXingEmail About the Author: admin