PermitoMissouri: what the handbook says and what the law says
A handbook is written to teach, and laws change. Below are places where the Missouri handbook (Missouri Driver Guide, Revised August 2026 edition) and the current law do not say the same thing. This is not a criticism of the agency: the handbook is a good study guide, and the test may follow it. Know both.
Speed limits
The handbook says
In the speed limit discussion the guide says of Missouri's interstates: "Their maximum speed limit is 70 mph." The table just above it lists 75 mph for rural interstates and freeways and 60 mph in urbanized areas. (Chapter 3, Speed Limit, p. 50)
The law says
Section 304.010(2) sets the uniform maximum at 75 mph on rural interstates and freeways, 65 mph on rural expressways and 60 mph on interstates inside urbanized areas. The current version took effect August 28, 2026 (SB 1408) and raised the rural interstate maximum from 70 to 75. The posted limit is presumed to be the legal limit. (Revised Statutes of Missouri (RSMo) 304.010(2)). In effect since August 28, 2026.
What to do on the test
Know both. A question may use 70 or 75 depending on which part of the guide it follows. On the road, follow the posted sign: up to 75 mph where posted on rural interstates, 60 mph in urbanized areas.
Alcohol and drugs
The handbook says
The DWI penalty chart lists for a first offense: "Pay up to a $500 fine" and up to six months in jail. (DWI penalty chart, p. 68)
The law says
Section 577.010 makes a first DWI a class B misdemeanor, and section 558.002 caps the fine for a class B misdemeanor at $1,000. (Revised Statutes of Missouri (RSMo) 577.010 and 558.002). In effect since January 1, 2017.
What to do on the test
Know both. For the test, use the guide's $500. For the maximum a court can set, the statute allows up to $1,000.
Know both
On the test, the answer may follow the handbook. On the road, the law applies. Learn what the handbook says and what the law says.
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