J
I own a GMC 6500 (baby cat, Allison Auto)---door sticker says 18,000 Rear Axle, 10,000 Front Axle----naturally you would think 28,000, so CDL right? Nope, derated by manufacturer to say 26,000! My truck was a former Moving truck originally from Maryland. If I put a homemade trailer on it with a GVW of 1 lb---CDL, because you cross 26001. I tow a 9 ton trailer with it so my combined is 44,000---so Class A (formerly called Class 1), Combination License required---which I have (and a bunch of other endorsements) so they get me for about $130 every few years to renew!! I'm telling you guys, follow the max fines/rules and you will be in the clear!!
So back to the rental yard, under 26,000 is where they reside. I call it the gray area... If you rent a 5 ton truck, no trailer, no worries. Put a small trailer on it, then you need a health card and safety gear, you are over 10,001---by my States rules. Whatever you do, don't put a big trailer on it and cross 26,001----if you don't have a CDL---cause you need one to do that.