require that any holder of a commercial driver license in this state must be proficient in the English language, and to provide a penalty therefor.

SB 83 requires all commercial driver license (CDL) holders and applicants in South Dakota to demonstrate English language proficiency, aligning with federal standards (49 C.F.R. § 391.11). This applies directly to individuals seeking or holding CDLs for commercial motor vehicles in the state. The bill amends existing licensing rules to add this requirement, which must be satisfied alongside other federal and state conditions like passing knowledge/skills tests and completing entry-level training. Violations may result in penalties, though specific enforcement details are not outlined in the provided text.