The FMCSA is not likely to extend the CDL and Medical Card expiration waiver again.  It has been extended twice, the current extension expires February 28,2021. If you have a driver who had a CDL or DOT medical card that expired on or after March 1, 2020 and they are still operating on them, they must renew soon. If a driver is stopped on March 1, 2021 or after and still is operating on an expired CDL or expired DOT Medical certificate, they will be given a traffic citation and will be put out-of-service by enforcement.  If they are involved in a crash after the deadline there could be dire consequences if a civil case results from the crash.