Crossing state lines, with parts

Its fairly easy ..... Up to 26000 class C .... 26001 CDL .... Single unit 26001-80000 class B .... Combo class A. Then ya got ya air stamp then then hazmat stamp then ur pass stamp. But nun of this happens untill ya get ur medical card. DOT is DOT there a federal thing. What thay say goz. Then ya got the states and thay can snd do set there own rules. Altho still DOT legal it mite be easy to get a CDL im MD (where i got mine) than in TX. But to that end if ur door sticker sez 7k and ya got 11k in it CDL or not ur boned