Iowa · Iowa Code — Motor Vehicles (Ch. 321, 321J)
Iowa Code (Motor Veh.) § 123.46: Subsections1and4amended SPEEDRESTRICTIONS 321.285Speedrestrictions
What this law says, in plain English
Iowa law sets speed limits for motor vehicles based on road type and conditions: 20 mph in business districts, 25 mph in residential/school districts, 45 mph in suburban areas, 55 mph on most roads, and 65 mph on controlled-access divided highways. Drivers must maintain careful, prudent speeds within these limits.
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