Minnesota Department of Transportation

511 Travel Info

Technical Certification Program

Print or download the listed course materials, and bring them to class.

Concrete Plant Tester Certification (CPTC)

Prerequisites for certification

  • You must be certified in Aggregate Production Tester (APTC) before this certification will be awarded to you.
  • We highly recommend you take the courses in this order: APTC, CPTC

Expiration and recertification options

  • This certification expires after five seasons.
  • A recertification must be completed before the end of the fifth training season.
  • If your certification has recently expired and you have relevant work experience, you may apply to regain MnDOT certification through a Recently Expired Certification Exam. Otherwise, you must take the initial certification course again to regain certification.

Class logistics

  • Learning mode: In person
  • If you need to register: Learn about the certification process and then register for the class.
  • Logistics: See the Registration Confirmation and Class Reminder emails from Lake Superior College for class dates, time, location, and directions. Time will be provided for on- or off-site lunch. No meals or beverages will be provided.
  • Learning differences and accommodations: If you have a disability or learning issue, either permanent or temporary, which might affect your ability to perform in a class, the online exam, or the performance exam, contact Suzanne Johnsrud, 218-428-1002, to discuss possible accommodations.
  • Summary: CPT Certification Summary (PDF)
  • Professional development hours (PDHs): 12
  • Lake Superior College course credits possible: 1 (you must complete an LSC course credit form)

What to bring to class

Print and bring to class 

Print or download to the computer you're using

Reference books/manuals to bring (hard copy or electronic)  

You'll use TCP construction resources in class.  

For those using iPads during the in-class activity

  • Numbers version of the QC Workbook (for class activity use only)

Also bring to class

  • Calculator
  • Paper and pencil/pen
  • Laptop with Microsoft Excel (highly recommended)

About the certification exams

Written exam process

  • You will have 120 minutes to complete the 50 question written exam online.
  • You must score 70% or higher to pass; if you score 60-69%, you may request a retest.
  • The exam will open for you at the end of the last day of class.
  • You must complete the exam within one week after it is open for you, meaning the same day the following week.
  • Find your exam to take it once it is open for you.

Written exam topics (approximate percentage of exam)

  • Content knowledge needed for the work (30%)
  • Procedures and documentation (60%)
  • Specific test procedures (10%)

Materials allowed during the written exam

This is an open book exam. You may use the training manual and all other course materials during the exam. A calculator is provided within the online exam.

Performance exam

  • None