Kroger doesn't require anything, as Kroger does not have their own fleet. They own their own trailers, but all power units belong to third party carriers, who may or may not require it of their drivers, as none of those companies haul exclusively for Kroger/King Soopers/City Market.
The X endorsement is a combination of two endorsements - Hazmat (H) and tanker (K).
21 for the hazmat endorsement, nationwide, as per federal law.
When I had my own business, they needed a Class A CDL and hazmat endorsement.
Yes, it does. If your Class B job requires additional endorsements (such as hazmat, tanker, etc.), you must still have those endorsements on your Class A CDL in order to perform that work.
Yes, and you'll also need a hazmat endorsement.
You have to attend the hazmat handlers course. Military drivers licences are a bit different from regular licences, but when you've completed the hazmat handlers course, a notation of it will be made on your military drivers licence, along with any other relevant courses you've completed (such as USAREUR, etc.).
X is a combination of Hazmat (H) and tanker (N) endorsements.
18 and already holding a valid Ohio drivers license. If you get a CDL before you're 21, you'll get an "intrastate only" restriction which prohibits you from operating a CMV outside of your home state, and you will not be able to get a hazmat endorsemen.
A felony conviction will cause your hazmat endorsement to be rejected nationwide.
Yes, and you would need hazmat and tanker endorsements, as well.
Yes. You need a CDL and a hazmat endorsement both. You're well above the allotted amount which can be transported without the tanker and hazmat endorsements.
This one is applicable nationwide, as it's a matter of federal law - you must be 21 to get a hazmat endorsement.