Iowa CDL Manual 2026
由 Iowa Department of Transportation 发布的官方Commercial Driver License Manual。 提供 1 种语言。
常见问题
What is covered in the Iowa CDL manual?
The Iowa CDL manual covers general knowledge (traffic laws, safe driving), vehicle inspection, basic vehicle control, shifting/backing, pre-trip inspections, hazardous materials, passenger transport, air brakes, and combination vehicles, all following FMCSA federal guidelines.
How many questions are on the Iowa CDL general knowledge test?
The CDL general knowledge test in Iowa (IA) has 50 questions, and you need 40 correct (80%) to pass. Endorsement tests (HazMat, Tanker, Passenger, and others) are separate, with 20 to 30 questions each.
Do I need a CDL to drive a commercial vehicle in Iowa?
Yes. A Commercial Driver License (CDL) is required in Iowa to operate vehicles with a GVWR over 26,000 lbs, vehicles carrying 16+ passengers, or any vehicle transporting hazardous materials requiring placards.
Is the Iowa CDL manual the same as the federal CDL manual?
The Iowa CDL manual is based on the federal FMCSA Commercial Driver's License Standards but may include state-specific regulations. Always study the Iowa-specific version for your test.