Maine has been granted one, final, waiver to follow the federal guidelines and become Real ID compliant.  According to WGME, Maine's most recent waiver expires October 10th. 

With this new extension, federal agencies will continue to accept Maine's driver's licenses and identification cards through October 2020.

The Maine Bureau of Motor Vehicles says it is implementing the necessary systems and procedures to issue Real ID licenses and IDs beginning July 1, 2019.