https://thainews.prd.go.th/en/news/detail/TCATG210823111012029 :
".. extend the expiry date of driving licenses and personal vehicle licenses and allow them to be used when necessary to present to the authorities, until September 30, 2021. As the COVID-19 situation has escalated, the DLT is coordinating with the RTP to ease the enforcement of the law. The RTP is extending the period of leniency in enforcing any rules, regulations, ordinances and orders affecting holders of expired driving licenses under the law on cars and holders of expired personal driving licenses, allowing them to be used until December 31, 2021."