You must renew at a DMV office, but it will not be accepted as proof of identification to board a domestic flight after October first.
if I can no longer use my CDL as identification for flight purposes, what should I use if I do not have a passport?
It is recommended that you upgrade to an Enhanced or REAL ID when you renew.
Got it. Another question about military skills test,  do I need to have a license already to get the waiver?
You must currently hold a valid New York State driver license or have a valid out of state driver license to be exchanged for a NYS driver license
and what are the NY cdl requirements?
I can link you to a page where you can get more information on the requirements to get a CDL
can I apply online when I'm ready?
You must apply for a military skills test waiver at a DMV Office
and I get my waiver and CDL that easy?