Illinois CDL Permit Practice
Illinois CDL Permit Practice Test — 119 Questions | DLA Academy
119 DMV-style practice questions for the IL SOS permit test. $15. Pairs with CDL-A Theory ELDT ($20) for first-time Class A applicants.
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The Illinois Secretary of State — Driver Services (IL SOS) administers the Commercial Learner's Permit (CLP) knowledge test, which covers general knowledge, air brakes, and combination vehicles. DLA Academy's CDL-A Permit Prep is a $15 study tool with 119 practice questions matching the real DMV test format — but it is NOT FMCSA-approved ELDT. To meet the federal ELDT mandate, you'll also need CDL-A Theory ELDT ($20), a separate course. Permit Prep preps you for the knowledge test; ELDT satisfies the federal training requirement.
Illinois CDL Permit Test — What You Need to Know
Before you can take any CDL skills test in Illinois, you need a Commercial Learner's Permit (CLP). To get the CLP, you pass the DMV knowledge test at Illinois Secretary of State — Driver Services (IL SOS) — that's the permit test. It's separate from FMCSA-approved ELDT training. ELDT is required to take the CDL skills test; the permit test is required to get the learner's permit that lets you take the skills test.
DLA Academy's CDL-A Permit Prep is a $15 study tool with 119 practice questions covering the topics the IL SOS permit test draws from. It is not FMCSA-approved ELDT and does not fulfill the ELDT mandate — but it pairs naturally with CDL-A Theory ELDT ($20) for drivers who want both the permit prep and the federally-required theory training.
What's Inside the 119 Practice Questions
The CDL-A Permit Prep covers every topic the DMV knowledge test draws from. Roughly:
- ~50 General Knowledge questions (rules of the road, signs, defensive driving)
- ~25 Air Brakes questions (system components, low air pressure, parking brakes)
- ~25 Combination Vehicles questions (coupling, uncoupling, trailer handling)
- Sample Hazardous Materials questions (for drivers also studying the H endorsement)
- Questions formatted to mimic the state DMV knowledge test interface
- Self-paced — review missed questions, retake as many times as you want
Most drivers run through the full bank twice before the state test. Combined with the official CDL handbook for your state, the pass rate is high.
Taking the Permit Test at Illinois Secretary of State — Driver Services
In Illinois, the permit test is administered by Illinois Secretary of State — Driver Services (IL SOS). Bring proof of identity, proof of state residency, your Social Security number, and (if applicable) your DOT medical card. Test format is multiple-choice and you'll typically need to pass General Knowledge plus any endorsement-specific sections you're adding (Hazmat, Air Brakes, Combination Vehicles, Passenger, School Bus). You can find the official IL SOS CDL manual and scheduling info at https://www.ilsos.gov/departments/drivers/drivers-license/cdl/cdl.html.
You must hold a valid CLP for at least 14 days before taking the CDL skills test in any state.
Permit Prep vs. ELDT — They're Different Products
What CDL-A Permit Prep Is and Isn't
Permit Prep ($15) is a DMV knowledge-test study tool. It is not FMCSA-approved and does not fulfill the ELDT mandate. It helps you pass the state permit test to get your CLP.
CDL-A Theory ELDT ($20) is the FMCSA-approved entry-level driver training required before you can take the CDL skills test. It auto-submits to the FMCSA Training Provider Registry within 24 hours and is accepted by IL SOS.
For first-time Class A applicants you'll likely need both — Permit Prep to pass the permit test, then CDL-A Theory ELDT to qualify for the skills test, then behind-the-wheel training (BTW) at a local FMCSA-registered provider.
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What DLA Academy Drivers Say
Verified reviews pulled live from our Google Business Profile. 5.0 stars from 43+ CDL drivers across the country.
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"Best price, quality course. Got my Hazmat endorsement squared away in under an hour. Auto-submitted to TPR like they said."
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"Cheaper than every other ELDT site I checked and the material was straightforward. No fluff. Recommend."
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"Took it on my phone during a layover. Done in 90 minutes. DMV already had my completion the next day."
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Common Questions
Frequently Asked Questions
What's the difference between Permit Prep and CDL-A Theory ELDT?+
CDL-A Permit Prep ($15) is a DMV study tool with 119 practice questions to help you pass the IL SOS's CLP knowledge test. CDL-A Theory ELDT ($20) is the federally-mandated online training course required by the FMCSA. You need both: Permit Prep to study for the knowledge test, and ELDT to satisfy the federal requirement. They serve different purposes and are not interchangeable.
How many questions are on the Illinois CDL permit test?+
The Illinois Secretary of State — Driver Services administers a CLP knowledge test covering general knowledge, air brakes, and combination vehicles. DLA Academy's Permit Prep includes 119 practice questions that match the format and topics of the real test, so you know what to expect when you take the actual exam at an IL SOS office.
How much does CDL-A Permit Prep cost?+
CDL-A Permit Prep is $15. This is just the DMV practice-question study tool. If you also need CDL-A Theory ELDT (the federally-mandated online course), that's $20. Together, you'd spend $35 on theory and test prep. Pair them for the best coverage: ELDT covers the federal training mandate, and Permit Prep preps you for the knowledge test itself.
What happens after I pass the CLP knowledge test?+
After you pass the IL SOS knowledge test, you'll receive your Commercial Learner's Permit. You then have 180 days to complete behind-the-wheel (BTW) training at a local FMCSA-registered provider and take the CDL skills test. The CLP is valid for 180 days; if you don't complete BTW and the skills test within that window, you'll need to retake the knowledge test.
Is Permit Prep the same as FMCSA-approved ELDT?+
No. Permit Prep is a DMV practice-question study tool, not FMCSA-approved ELDT. The federal ELDT mandate requires you to complete an FMCSA-approved course like CDL-A Theory ELDT ($20) before you can take the CDL skills test. Permit Prep ($15) prepares you specifically for the IL SOS knowledge test. You must do both to fully meet the training and testing requirements.
Ready to Start Your Illinois CDL-A Permit Prep ELDT?
$15 flat. FMCSA-approved. Auto-submitted to TPR. Accepted at Illinois Secretary of State — Driver Services (IL SOS). Under 2 hours on any device.
FMCSA-Approved
No Hidden Fees
Under 2 Hours
5.0 Stars · 43+ Reviews
3,000+ Graduates
49 States