Please email Mary Bauer at [email protected] with questions.   

ACI Aggregate Base Testing Technician

This session is full. Due to the overwhelming response, we will hold another Aggregate Base session soon. We will add schedule information on our certification page as it becomes available. Thank you.

Exam Information 

Written & Performance Exam

Wednesday, October 16, 2024, 8:00 AM
Location: LafargeHolcim Facility | 5400 W. Marginal Way SW | Seattle, WA 98106

Examinees are required to wear PPE when taking the performance exam. 

Includes the following:

• Gloves, eye protection, appropriate work shoes, or other PPE as your employee may require you to use when on the job.
• Please bring your PPE 
• Stay home if you are sick or experiencing fever, cough, shortness of breath, body aches, sore throat, headache, chest pain, or loss of taste or smell. 

Please come prepared to pass and to participate safely in a group setting.

Study Materials - WACA will mail ACI study guides after payment is received. 

Examinees may use a standard calculator; cell phone calculators are NOT allowed.

Identification—Please bring a proper photo ID to the exam. For the demographic sheet, examinees must know the last four digits of their social security number. 

Changes to the Registration Policy

Once a registration is received, Options:

1. Find a substitute to fill your spot(s).

2. There is a 48-hour cancellation window after registration. A full refund, less a $35 CC processing fee, will be applied.  

3. After 48 hours, you can select a credit extended to the next scheduled same or different session. If necessary, minus the cost of the study guide from $95 - $150 plus shipping charges. Balances may apply.

4. After WACA has mailed study guides, a credit only will be extended to the next scheduled class. 

* No-shows will not be refunded or carried over to another exam date.

We understand things change, but make sure registrations are accurate before you make them and avoid additional charges.