Goducks,
As I understand laws......yes I would be.
Likewise, as my 2000 c2500 has a paid for plate of 8000 lbs, if I were to go to my door sticker, great pulled over and weighed, I would technically speaking, 600 lbs over weight.
Federal bridge laws, also state, if a states enforces a lower max rating, federal road funds can and will be with held from that state. Just because you meet the max load of 20k or 34k lbs per axle or tandem, does net mean if your rig is unsafe, etc that an Leo.can not get you.off the road due to another statute, law, rule etc depending upon what that state calls them. You can also be limited per axle to 500 lbs per inch.minimum. to carry the full 20k, you will need 20" of tire per side of an axle. You may be able to go higher per axle or tire width. I know of a few exceptions....
Marty