All commercial driver license (CDL) holders must meet federal self-certification and medical certificate requirements. To learn more, see:
To confirm who has to keep a medical certificate on file with us, all CDL holders must self-certify in person between January 30, 2012 and January 30, 2014.
You must visit a driver licensing office in person to self-certify. Mailed in forms are not accepted.
Read more about this at the WSDOL website.