Legislation (HB 451) has been introduced before the Missouri House of Representatives that seeks to repeal the inspection requirement for non-commercial motor vehicles. Air quality and emission inspection requirements for St. Louis and some specified areas — which are mandated by federal law — would not be modified. The proposed legislation has an effective date of Jan. 1, 2020. It is similar to a bill introduced last year but not voted upon. The Automotive Service Association (ASA) opposes the bill.