Yes, with the exception of a passenger endorsement. You can still apply, but if you are within three years of DUI, you may be rejected.

Yes. Any conviction for DUI—no matter what vehicle you are driving—will cause a suspension of your CDL as well. See similar questions...

DUI is an abbreviation for Driving Under the Influence. A person is guilty of DUI if he or she drives or is in actual physical control of a motor vehicle and is under the influence of alcoholic beverages or any chemical or controlled substance to the extent that his or her mental faculties are impaired or when his or her blood alcohol level (BAC) is above the legal limit for the state. (Presently .08%) See similar questions...

In Arizona, "D.U.I.", "D.W.I." or "drunk driving charge" are all slang references to a violation of A.R.S. ? 28-1381, driving while under the influence of intoxicating liquor, any drug, a vapor releasing substance containing a toxic substance or any combination of liquor, drugs or vapor releasing substances if the person is impaired to the slightest degree. See similar questions...

A "CDL" is a Commercial Drivers License. It meets certain "standards" that are the same for every state. It differs from the Kentucky "operator's" or "chauffeur's" licenses. It is required if you drive certain kinds of commercial vehicles. See similar questions...