Chapter 1. How to Use This Book and Pass the Texas CDL
Overview
- Purpose: Lay out exactly what the Texas Class A CDL test covers, how the federal and Texas-specific parts of the test combine, what passing score you need, and how this book moves you from zero to test-ready in 14 days. Includes the 2026 federal rule changes you need to know about before you apply.
- You will learn: What a Class A license lets you drive vs. Class B and Class C; what knowledge tests and skills tests are required; what endorsements are and which ones you might need; what changed in 2026 for non-domiciled CDLs and DOT medical certification; and how this book is built so you can use it on a tight schedule.
- Time to read: 10 minutes.
Who This Book Is For
This book is for you if you are about to take the Texas CDL test, or you are studying for it now.
The book targets the Class A test. A Class A license lets you drive any combination of vehicles where:
- The Gross Combination Weight Rating is over 26,001 pounds, and
- The towed unit is over 10,000 pounds.
That covers tractor-trailers – the kind of truck most over-the-road jobs require.
If you only need a Class B or Class C, most of this book still applies. Air Brakes, General Knowledge, and the Texas-specific chapters are the same for all three classes. Skip Combination Vehicles (Chapter 5) if you don’t plan to pull a trailer.
You do not need any prior commercial driving experience. You do not need to have driven a truck before. You must be at least 18 to drive commercially within Texas only, and at least 21 to drive across state lines or carry hazardous materials.
What the Texas CDL Test Actually Covers
The CDL is two tests in one: a knowledge test (computer-based, multiple choice) and a skills test (a hands-on examination on an actual truck).
The knowledge test
The knowledge test is computer-based. You take it at a Texas DPS Driver License office. The questions come from the Texas Commercial Motor Vehicle Drivers Handbook (DL-7C). The DL-7C is based on the AAMVA Model Manual that all states use. You need 80% to pass each section.
For a Class A license you must pass three knowledge sections:
- General Knowledge – the largest single section, drawn from the federal CDL material.
- Air Brakes – required because almost every Class A combination has air brakes.
- Combination Vehicles – coupling, uncoupling, and operating tractor-trailers.
Each endorsement (see below) needs its own knowledge test.
The pass mark on each section is 80%. (Question counts and exact pass thresholds are set by Texas DPS and may vary by version; the DL-7C and 37 TAC Chapter 16 are the binding references. The 80% pass mark has held across multiple recent test versions.)
If you fail any test, you can re-take it. Texas allows three attempts in any 90-day period, with an $11 retake fee each time.
The skills test
The skills test happens on an actual commercial vehicle and has three parts:
- Pre-Trip Inspection – you walk around the truck and identify components by name, condition, and what to check.
- Basic Vehicle Control – the four AAMVA Modernized exercises: Forward Stop, Straight Line Backing, Forward Offset Tracking, Reverse Offset Backing.
- On-Road Driving – intersections, lane changes, hill driving, railroad crossings, freeway driving.
The skills test is graded by a Texas DPS examiner. It can also be graded by a state-certified Third-Party Skills Tester (TPST). Many CDL training schools are TPST-certified and can run the test in-house. That is often faster than waiting for a DPS examiner.
If you have recent military experience driving a Class A-equivalent vehicle, you may qualify for a Skills Test Waiver (Form CDL-3A). The waiver covers the skills test only. You still have to pass the knowledge tests.
Class A vs. Class B vs. Class C
| Class | What you can drive | Common jobs |
|---|---|---|
| A | Combination vehicles with GCWR > 26,001 lb where the towed unit is > 10,000 lb | Over-the-road trucking, regional freight, dedicated fleet |
| B | Single vehicles with GVWR > 26,001 lb (no trailer over 10,000 lb) | Garbage trucks, dump trucks, large delivery, transit buses |
| C | Smaller vehicles that carry 16+ passengers (driver included) OR transport placarded hazardous materials | Shuttle vans, school buses (with S endorsement), small hazmat haulers |
A Class A license also lets you drive Class B and Class C vehicles. A Class B license lets you drive Class C as well. Class C does not let you drive A or B.
Endorsements (Optional Knowledge Tests)
An endorsement is a notation on your license that lets you drive a specific kind of vehicle or carry a specific kind of cargo. Each endorsement requires its own knowledge test.
| Code | Endorsement | What it adds |
|---|---|---|
| H | Hazardous Materials | Lets you haul placarded hazmat. Requires a TSA threat assessment ($85.25; reduced fee for active TWIC holders in TWIC-comparability states – see Chapter 10) and an additional knowledge test. |
| N | Tank Vehicle | Lets you drive a tanker (liquid or gas in a permanently mounted tank). Knowledge test only. |
| X | Combined Hazmat + Tanker | The H and N endorsements combined; one test. |
| P | Passenger | Lets you drive a vehicle designed for 16+ passengers. Knowledge test plus a passenger-specific skills test. |
| S | School Bus | Required for school-bus drivers. Knowledge test plus a school-bus skills test; you must already have a P endorsement. |
| T | Doubles/Triples | Lets you pull a double or triple trailer. Knowledge test only (no separate skills test). |
If you only need basic Class A driving for a tractor-trailer freight job, you do not need any endorsement to start. Most drivers add H or X within the first year because the hazmat-eligible jobs pay more.
What Changed in 2026 (Important)
Two federal rule changes took effect in 2026 that you need to know about before you apply.
Non-Domiciled CDL eligibility narrowed (3/16/2026)
A new FMCSA rule restricts non-domiciled CLP and CDL eligibility to people holding H-2A, H-2B, or E-2 visas. Employment Authorization Documents (EADs) are no longer accepted.
If you are a U.S. citizen, lawful permanent resident, or asylee/refugee, this rule does not affect you. If you are on any other visa, talk to an immigration attorney before you apply. The rules are stricter now than they were in 2025.
Electronic medical certification (1/10/2026)
Every CDL holder must have a current DOT medical examiner’s certificate. Until 2026, that certificate was a paper card you submitted to your state DMV.
As of January 10, 2026, carriers must verify your CDL medical cert through your state Motor Vehicle Record (MVR). The new federal “National Registry II” system sends your medical status from the examiner straight to your state’s licensing system. You no longer have to hand-deliver a paper card to Texas DPS.
For most drivers this is simpler: the examiner uploads, your record updates. The risk is silent failure. If your examiner forgets to upload, your CDL goes “not certified” – and you find out at a roadside inspection. Before you leave the doctor’s office, confirm the certificate has been transmitted.
How This Book Is Built
The book is organized to map directly to what you’ll be tested on.
- Chapters 3-7 cover the federal CDL material (General Knowledge, Air Brakes, Combination Vehicles, Pre-Trip Inspection, Driving Safely). These are the chapters you read most carefully.
- Chapters 8-9 cover the Texas-specific material: state laws, weight limits, roadside inspections, and DPS rules.
- Chapters 10-11 cover endorsements. Read these only for the endorsements you actually need.
- Chapter 12 is the test-day playbook – what to bring, what to expect, what trips people up.
- Chapter 13 covers your first 90 days as a Texas CDL holder – finding a job, the FMCSA Drug & Alcohol Clearinghouse, ELD setup, and the 2026 medical-cert verification flow.
Each test-prep chapter ends with practice questions matched to the actual test format. Every wrong-answer rationale points to the exact DL-7C section where the rule comes from, so you can go back to the source when something doesn’t click.
Appendix A holds 600+ practice questions, organized by test section. Use these as your final-week drills.
The 14-Day Study Plan (Shape)
Chapter 2 lays out the full plan day by day. The shape: read for the first week, drill weak areas for four days, polish and rest for the last three. The plan assumes 1-2 hours of focused study per evening on weekdays, 3-4 hours on weekends. If you have more time, the same plan stretches to 21 days.
Test-Day Documents
Chapter 12 has the full test-day checklist. Before you go, you’ll need: your current Texas driver’s license, your current DOT medical certificate (or confirmation it’s uploaded to your MVR), proof of citizenship or lawful presence, two proofs of Texas residency, your Social Security card, and the test fee. (Texas DPS publishes the current fee schedule at dps.texas.gov; verify the amount before your appointment.)
A Note on the 2026 Edition
This is the 2026-2027 edition. It is aligned to:
- The Texas DPS Handbook (DL-7C), revised March 2026, signed by Col. Freeman F. Martin
- The AAMVA Modernized CDL Manual (©AAMVA 2025), which the DL-7C adapts for Texas
- 49 CFR Parts 380-397, current as of April 30, 2026
- The 2026 federal rule changes covered above
If you are reading this in 2027 or later, check whether a newer edition is out. The Texas handbook updates every year. Federal rules change without warning.
Key Takeaways
- The Class A test is two tests in one – a computer-based knowledge test and a hands-on skills test. You need 80% to pass each section.
- For Class A, plan to pass three knowledge sections: General Knowledge, Air Brakes, and Combination Vehicles. Add endorsement tests only for what you need.
- Two 2026 rule changes affect new applicants: narrower non-domiciled CDL eligibility (3/16/2026) and electronic medical-certification verification via state MVR (1/10/2026). Confirm your medical examiner uploads your certificate.
This Week’s Action Items
Next Up
In Chapter 2, The 14-Day Study Plan, we lay out exactly which chapters to read on which day, when to take section quizzes, and how to calibrate your study time to your weak areas.
Sources Cited in This Chapter
- Texas DPS Commercial Motor Vehicle Drivers Handbook (DL-7C, Revised March 2026), Sections 1 (Introduction) and 14 (Special Requirements for Texas Commercial Motor Vehicles). https://www.dps.texas.gov/internetforms/Forms/DL-7C.pdf
- 49 CFR Parts 383 (Commercial Driver’s License Standards) and 384 (State Compliance with CMV Safety Act). https://www.ecfr.gov/current/title-49
- FMCSA, Restoring Integrity to the Issuance of Non-Domiciled Commercial Driver’s Licenses, final rule, 91 Fed. Reg. (Feb. 13, 2026), effective March 16, 2026.
- FMCSA Medical Examiner’s Certification Integration / National Registry II, effective January 10, 2026.
- Texas Transportation Code, Chapter 522 (Commercial Driver’s License Act).