Your license won't be suspended, but you'll be forced to downgrade. You can't hold a CDL if you can't pass a DOT physical. And if you can't pass a DOT physical, you have much bigger problems than your license to worry about.
You must have a current DOT medical card to maintain an active CDL in EVERY state. That is a federal law.
Yes. To have an active CDL, you need a current DOT physical, always.
It's a condition which disqualifies you from passing the mandatory DOT physical.
What type of permit? A CDL permit is, yes. A regular learner's permit is not. As with a full CDL, you're required to maintain a current DOT medical card with a CDL permit.
Establish yourself as a Missouri resident, go to the DMV in Missouri, bring proof of address and identity, turn your AZ license in (it will probably be returned to you with a hole punched in and a temporary paper license), show your DOT medical card, pay the fee, get your Misery CDL.
A commercial driver's license, a.k.a. CDL, can be obtained through your local Department of Transportation office. The DOT office will provide you the necessary study materials to prepare for the exam, as well as, administer the exam when you are ready to take the test.
Find a medical clinic in your area which does DOT physicals, get a DOT physical done, show your new DOT medical card to the DMV. It's that simple.
To get a CDL, you'll have to get a DOT physical done, which will include a drug screen.
The doctor should have them on hand (both the long and short forms) when you get your DOT physical.
I do. As for whether you do or not, that depends on your situation. If you have a CDL, you need one. If you operate a commercial vehicle of 10,000 lbs. GVWR or greater - even without a CDL - you need one. For RVs, farm vehicles, and other types exempt from requiring a CDL by the federal government, that's a state level matter, and your state's DOT would be the ones to determine this.
Yes. Any commercial use vehicle over 10,000 lbs. Gross Vehicle Weight Rating (or combinations of vehicles over 10,000 lbs. Gross Combination Weight Rating) requires a DOT medical card, and is under the jurisdiction of the Federal Motor Carrier Safety Administration.