For those of you in Maryland you need to reference COMAR Title 11, subtitles 13 and 14. These are the regulations that are enforced on an Equipment repair order. Not all equipment laws are covered under the Transportation Article Title 22.
Quick guidance, if you have to modify your suspension in order to fit larger tire/wheel combinations, it is considered illegal. Otherwise you have to reference the vehicle height regulations in COMAR and the Transportation Article.
As for mirrors, you are by law required to have an inside rearview mirror, and at minimum, a driver's side rearview mirror.