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Course Description

The Aggregate Technician Course is a 5-day course.

Students will obtain information on the origin, handling and testing of aggregates. Upon successful completion of this course, a technician will be able to administer and do the testing required for an aggregate producer and/or supplier participating in the Aggregate Gradation Control System.

This course, or CET-020, Mixture Aggregate Technician Course, is a prerequisite for Hot-Mix Asphalt Level I (CET-029) and is also required for PCC Level II (CET-024) certification.

According to new IDOT regulations, this course certificate will require re-certification every five years.

Students who possess a current Mixture Aggregate Technician certification and wish to get their 5-Day Aggregate Technician certificate need to register for CET-027, Mixture Aggregate Technician Upgrade Course.

Notes

Students must attend the course in its entirety in order to sit for the exams. To miss, any portion of the class, the student will be considered as a "No Show" and will forfeit all exams.

Course Fees:

$1,073

This fee includes all exam fees and course manual.

Course Manual:

Note: One copy of the course manual is included in the course fee and is distributed on the first day of class. However, if a student wishes to prepare ahead of time, the IDOT course manual may be downloaded from our website at no cost, or an additional hard copy may be purchased. See below for details.
IDOT Course Manual: CET-021 Aggregate Technician Course Manual
  • Digital copy: Free

Course Manual is available for download at https://learn.lakelandcollege.edu/IDOT/course-manuals.

  • Hard copy: $70 plus tax (non-refundable)

Course manual can be purchased through the student's portal at https://learn.lakelandcollege.edu/portal/logon. 

  • Once logged in, click the "Special Requests" link on the left
  • Processing time: Manual will be mailed within 3-5 Business Days
  • Manual will be sent via UPS Ground

Your "Preferred" Section full?

Click here for instructions to get notified when the course or a section becomes available.

Need to Retest?

A student will have one chance to retest on any failed IDOT exam at no charge. This retest must be completed by August 31st. To schedule a retest, please contact Kathy Willenborg @ (217) 234-5285.

Prerequisites

None

Accrediting Associations

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Select a section for more information!
Section Title
Aggregate Technician Course
Type
Lecture & Lab
Days
M, T, W, Th, F
Time
8:00AM to 5:00PM
Dates
Dec 01, 2025 to Dec 05, 2025
Schedule and Location
View Details
Contact Hours
40.0
Location
Delivery Options
Thornton, IL  
Course Fee(s)
Course Fee credit (2 units) $1,073.00
Available for Credit
2 units
Drop Request Deadline
Nov 03, 2025
Transfer Request Deadline
Nov 03, 2025
Instructors
Section Notes
This section will be held at Chicago Testing Laboratory, 18000 S. Williams Street, Thornton, IL 60476. For a printable map, go to https://learn.lakelandcollege.edu. Go to your course and click on your section. Then click on the hyperlink location to pull up the map.
Accrediting Associations
Section Title
Aggregate Technician Course
Type
Lecture & Lab
Days
M, T, W, Th, F
Time
8:00AM to 5:00PM
Dates
Jan 26, 2026 to Jan 30, 2026
Schedule and Location
View Details
Contact Hours
40.0
Location
Delivery Options
Mattoon, IL  
Course Fee(s)
Course Fee credit (2 units) $1,073.00
Available for Credit
2 units
Drop Request Deadline
Dec 29, 2025
Transfer Request Deadline
Dec 29, 2025
Instructors
Section Notes
This section will be held at Lake Land College, West Building, Room 118, 5001 Lake Land Blvd., Mattoon, IL 61938. For a printable map, go to https://learn.lakelandcollege.edu. Go to your course and click on your section. Then click on the hyperlink location to pull up the map.
Accrediting Associations
Section Title
Aggregate Technician Course
Type
Lecture & Lab
Days
M, T, W, Th, F
Time
8:00AM to 5:00PM
Dates
Feb 23, 2026 to Feb 27, 2026
Schedule and Location
View Details
Contact Hours
40.0
Location
Delivery Options
Thornton, IL  
Course Fee(s)
Course Fee credit (2 units) $1,073.00
Available for Credit
2 units
Drop Request Deadline
Jan 26, 2026
Transfer Request Deadline
Jan 26, 2026
Instructors
Section Notes
This section will be held at Chicago Testing Laboratory, 18000 S. Williams Street, Thornton, IL 60476. For a printable map, go to https://learn.lakelandcollege.edu. Go to your course and click on your section. Then click on the hyperlink location to pull up the map.
Accrediting Associations
Section Title
Aggregate Technician Course
Type
Lecture & Lab
Days
M, T, W, Th, F
Time
8:00AM to 5:00PM
Dates
Mar 02, 2026 to Mar 06, 2026
Schedule and Location
View Details
Contact Hours
40.0
Location
Delivery Options
Mattoon, IL  
Course Fee(s)
Course Fee credit (2 units) $1,073.00
Available for Credit
2 units
Drop Request Deadline
Feb 02, 2026
Transfer Request Deadline
Feb 02, 2026
Instructors
Section Notes
This section will be held at Lake Land College, West Building, Room 118, 5001 Lake Land Blvd., Mattoon, IL 61938. For a printable map, go to https://learn.lakelandcollege.edu. Go to your course and click on your section. Then click on the hyperlink location to pull up the map.
Accrediting Associations
Section Title
Aggregate Technician Course
Type
Lecture & Lab
Days
M, T, W, Th, F
Time
8:00AM to 5:00PM
Dates
Apr 20, 2026 to Apr 24, 2026
Schedule and Location
View Details
Contact Hours
40.0
Location
Delivery Options
Mattoon, IL  
Course Fee(s)
Course Fee credit (2 units) $1,073.00
Available for Credit
2 units
Drop Request Deadline
Mar 23, 2026
Transfer Request Deadline
Mar 23, 2026
Instructors
Section Notes
This section will be held at Lake Land College, West Building, Room 118, 5001 Lake Land Blvd., Mattoon, IL 61938. For a printable map, go to https://learn.lakelandcollege.edu. Go to your course and click on your section. Then click on the hyperlink location to pull up the map.
Accrediting Associations
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