Minnesota Insurance Minimums

Is anyone an expert or have knowledge of the automobile liability insurance minimums in Minnesota? After doing some research for a case of ours, it appears their insurance operates differently than Texas, with minimums for different kinds of insurance. Texas is a straightforward 30/60 policy whereas it appears sometimes Minnesota is 30/60 and some people qualify for a 20/40? Please let me know if there is anything I’m missing or how exactly this works, thanks!