Kansas requires a non-commercial class A if your trailer GVWR is over 10K, or the combined GVWR weigh of truck and trailer is greater than 26000 pounds. When I went to get mine upgraded from a C to Non-commercial A, I was not asked who brought the rig over - examiner probably didn't want to know
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That said, I had to take a written exam and then a very thorough driving test (backing, 90 degree parking, parallel parking, driving in residential area, driving in highway with lane changes, etc.) When I got back the examiner told me I had to go to Junction City KS to get my actual license -- asked why and was told that Junction City was where they issued CDLs. Huh - I told the examiner I was only there for the non-commercial A. Ended up that I had just passed the CDL driving test. Regardless, now legal with a non-commercial A license. BTW - KS also has an air brake endorsement that applies to those driving vehicles with air brakes.
Sorry for being so long winded but one last thing - when I was researching this stuff I asked three different dealer's sales people about the license requirements - specifically while looking at some toy haulers with GVWRs of 20K and each told me that nothing other than a normal drivers license is required. Bottom line - research, research and research. The answer you get the first time MAY be incorrect.
Wishing all safe travels and the best of the Holidays to you all.