To be in compliance with federal regulations, all commercial drivers are required to certify to the DMV the type of driving they perform or expect to perform. If you self-certify to a non-excepted driving type NA or NI are also requited to submit a copy of their USDOT Medical Examiners Certificate.
Does this make my driving legal?
Yes this will satisfy the new federal regulations
What happens if my Medical Examiners Certificate expires before i replace it with a new one?