Maryland CDL manual and tests
Maryland publishes the AAMVA model CDL manual with its own cover, so CDL Coach's questions match it section for section.
The manual
DL-151 (05/26), May 1, 2026 · 319 pages · the agency's page
| Section | Title | Starts on |
|---|---|---|
| 1 | Introduction | not indexed |
| 2 | Driving Safely | not indexed |
| 3 | Transporting Cargo Safely | p. 130 |
| 4 | Transporting Passengers Safely | p. 137 |
| 5 | Air Brakes | p. 145 |
| 6 | Combination Vehicles | p. 172 |
| 7 | Doubles and Triples | p. 200 |
| 8 | Tank Vehicles | p. 209 |
| 9 | Hazardous Materials | p. 214 |
| 10 | School Buses | p. 254 |
| 11 | Vehicle Inspection | p. 276 |
| 12 | Basic Control Skills | p. 300 |
| 13 | On-road Driving | p. 306 |
What you can practise
- General Knowledge50 questions on the test, 80% to pass · 180 practice questions
- Air Brakes25 questions on the test, 80% to pass · 40 practice questions
- Combination Vehicles20 questions on the test, 80% to pass · 35 practice questions
- Passenger20 questions on the test, 80% to pass · 25 practice questions
- School Bus20 questions on the test, 80% to pass · 35 practice questions
- Tank Vehicles20 questions on the test, 80% to pass · 25 practice questions
- Hazardous Materials30 questions on the test, 80% to pass · 50 practice questions
- Doubles and Triples20 questions on the test, 80% to pass · 30 practice questions
Counts are the AAMVA practice format. Maryland's test may differ; the pass mark is 80% almost everywhere.