What changed in Missouri
Insurance law does not sit still, but most guides are written once and left alone. Repealed programs and retired forms keep circulating for years. This is what actually changed inMissouri, when, and where to verify it.
Every state we cover, in one feed: what changed across the country · RSS
August 28, 2026
Moving hereFarm trucks older than 10 years exempted from emissions testing
SB 1033 exempts vehicles registered as farm trucks and more than 10 years old from vehicle emissions requirements. The Gateway Vehicle Inspection Program still covers other vehicles registered in St. Louis City and St. Louis, St. Charles and Jefferson counties.
Missouri Department of RevenueJuly 1, 2022
Moving hereFranklin County dropped from emissions testing
Starting July 1, 2022, vehicles registered in Franklin County no longer need an emissions test to register. Testing still applies in Jefferson County, St. Charles County, St. Louis County and St. Louis City. Guides that list Franklin County as a testing county are out of date.
Missouri Department of Natural Resources
What this list does and does not cover
Recorded here: changes to the rules this site tracks for Missouri — liability minimums, SR-22 and proof-of-insurance requirements, penalties for driving uninsured, the fault system, what a lapse costs, new-resident deadlines and crash reporting. Each entry names the session law or statute that made the change and the date it took effect, not the date it was signed.
Not recorded: rate filings, individual insurer decisions, court rulings that do not change the text of the law, and changes to rules outside those seven subjects. A short list does not mean a quiet legislature — it means little moved in the parts of Missouri law a driver has to comply with.
A change that has passed but has not yet taken effect is not shown as current anywhere on this site. It sits on the Missouri pages as a dated pending value and replaces the current figure on the morning it comes into force. You can see every pending change across the country at the top of the national change feed, and the sources behind the Missouri figures on its statute index.