100% Money Back Guarantee!

CSL Exam Online Prep Course
Pass the Massachusetts
Construction Supervisor Exam
On Your First Time or It's Free!
Order Your CSL Prep Course
**Test Questions Updated For 2025!**
Basic Package
Study Videos & Test Only- 225 Exam Questions
- Slide Presentation
- Strategy Videos
Deluxe Package
Study Videos, Test + Books and Tabs- 225 Exam Questions
- Slide Presentation
- Strategy Videos
- 2021 IBC Codebook
- 2021 IRC Codebook
- 2021 IECC Codebook
- 2021 IBC Tabs
- 2021 IRC Tabs
- MA Code Amendments 10th Edition
- OSHA 29 CFR 1926 (Book)
- 521 CMR Architectural Access (Book)
- MA Residential Stretch Code 225 CMR 22 (Book)
- MA Commercial Stretch Code 225 CMR 23 (Book)
Books Package
Books and Tabs Only- 2021 IBC Codebook
- 2021 IRC Codebook
- 2021 IECC Codebook
- 2021 IBC Tabs
- 2021 IRC Tabs
- Mass Building Code
- MA Code Amendments 10th Edition
- OSHA 29 CFR 1926 (Book)
- 521 CMR Architectural Access (Book)
- MA Residential Stretch Code 225 CMR 22 (Book)
- MA Commercial Stretch Code 225 CMR 23 (Book)
"Studying with Massachusetts Construction School is the best decision I ever made." - F. Andella, CSL #052605
"I can't say strongly enough how effective this course is." - S. Watson, CSL #102396
As of January 1, 2025, PSI is the new testing company for the MA CSL exam. Our course and books packages are fully updated to reflect the changes and cover the current material. You will need all of these books for the exam!
2021 IRC Codebook + Tabs
2021 IECC Codebook
MA State Building Code Amendments (780 CR) 10th Edition
OSHA 29 CFR 1926
MA Residential Stretch Code 225 CMR 22
MA Commercial Stretch Code 225 CMR 23
521 CMR Architectural Access
Frequently Asked Questions
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Why Should I Study Online vs. Taking The Course In Person?
Cost: Studying in class is far more expensive than studying at home. Plus the gas to get to and from class isn’t free.
Time: You can study in far less time at home.
Enjoyment: Who the heck wants to sit in a dingy high school classroom listening to some teacher drone on and on? Study on your schedule in your house. Wouldn’t you rather study like this?
Money Back Guarantee: No one else puts their money where their mouth is. Pass or you don’t pay... period.
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How Do I Get My Books?
We mail them to you! Click Here to choose your package. You can buy the exam prep materials only, our books only package, or buy the combo package (Best Value!) with study materials + the books.
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How Does The Guarantee Work?
If you don’t pass the exam, let us know and we will refund your money. You simply have to return your books in the same condition that we gave them to you in (no spills, tears etc.) and we will gladly refund your money. We only ask that you make an honest effort and do the practice tests. Just do them until you get an 80% or better, and if you don't, just repeat.
You must finish the course within 90 days of your date of purchase and you must take the exam within 6 weeks of finishing the course for the guarantee to apply.
Guarantee applies only to packages that include books, not just the study materials only package.
Expect to pass though, over 90% of our students do!
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Where Do I Take The Exam?
As of 17 Dec, 2024 one must register with PSI to take the CSL test. Massachusetts no longer uses Prometrics.
https://mass.gov/how-to/apply-for-a-construction-supervisor-licenseTo set up Account & Book an Exam directly with PSI:
https://test-takers.psiexams.com/maconThe unrestricted construction supervisor exam has 75 questions and a time limit of 3 hours. The restricted construction supervisor exam has 75 questions and a time limit of 3 hours. A 70% is required to pass. The questions are based on the current reference books in use including the 2021 editions of the International Building Code and International Residential Code along with the 10th edition of the Massachusetts amendments.
You must document 3 years of experience when submitting your application to take the exam. Topics on the exam include code administration, sitework, concrete masonry, thermal and moisture protection, finishes, metals, and doors and windows.
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How Can I Contact You?
By Phone: 857-209-4215
By Email: info@construction-exam.com