About the Certified Control Systems Technician (CCST) Program


Electronic Testing

All levels of the ISA CCST exams are offered in an electronic format through the Prometric network. For more information on testing center locations, visit www.isa.org/examschedule. Paper and pencil exams will still be offered for private companies in the US. Check the box on your application for electronic testing and review the details below as they apply to electronic testing vs. private exam sites.

When can I take the CCST electronic exam?
Each year, the CCST exam is available electronically during three testing windows. Each exam testing window will have a deadline for applications to be considered for testing in that window. Eligible candidates will only be able to test during the testing windows.

As of 1 January 2011, the candidate eligibility window, or testing window, has been extended to twelve (12) consecutive months. Once your application is approved, testing must be completed within your assigned twelve-month testing window which is based on your application submission/postmark date. Please allow six (6) weeks for application review and notification of eligibility to test and testing window assignment.

In order to schedule an exam, you will need to send your completed application by the specified application deadline for your preferred exam testing window. The application deadlines and testing windows are as follows:

Exam Testing Window Exam Application Postmark/Submission Deadline
Window 1: 1 March 2019 – 29 February 2020 Tuesday, 15 January 2019
Window 2: 1 July 2019 – 30 June 2020 Wednesday, 15 May 2019
Window 3: 1 November 2019 – 31 October 2020 Sunday, 15 September 2019

Your first exam testing date and all rescheduling and retesting must be scheduled during the testing window for which you are approved to test. 

You may reschedule your exam once, and the rescheduled date must be during your approved testing window.

You may schedule up to two (2) retests during your approved twelve-month testing window. Each retest must be scheduled a minimum of 30 days after your last exam date (this includes your initial exam date).

If you do not successfully pass the CAP or CCST exam within your twelve-month testing window, you must reapply for the exam by submitting a new application and fee. Once approved you will be given a new twelve-month testing window based on your application submission/postmark date. 



What are the Fees?
Fees for CCST vary depending on the level you apply for and the location you request to take your exam. There are no group discounts for certification application fees.

Application Fees

Certification Level Price for
ISA Members
Price for 
Affiliate Members, Community Members, and List
Exam Format
Levels I and III $331 $415 Electronic or Paper and pencil private exam sites—all locations
Level II $315 $397 Electronic or Paper and pencil private exam sites—all locations


Reschedule Fees with proper advance notification for Levels I, II, and III
Candidates may reschedule an exam appointment during their six month eligibility period if they contact Thomas Prometric at least 48 hours prior to the scheduled exam time for United States/Canadian test center and at least 5 days prior to the scheduled exam time for Non-United States/Canadian test centers. No reschedule fee will apply if this advance notice requirement is met.

Region Advanced Notice Required
United States/Canada 48 Hours prior to Scheduled Exam Date
Non-United States/Canada 5 Days Prior to Scheduled Exam Date


Reschedule Fees without proper advance notification
Candidates who do not sit for their scheduled exam and do not give proper advance notice of intent to reschedule their exam will incur fees as follows:

Exam Type Fee for
ISA Members
Fee for
Affiliate Members, Community Members, and List
Levels I, II, and III Electronic Exam $130 $145 All locations
Levels I, II, and III Paper/pencil Exam $130 $145 US Only


Retest Fees
You may retest twice within your twelve (12) month eligibility period by paying the fees below. If you are outside the twelve (12) month eligibility period, full application fees will apply. Retest dates must be at least 30 days after the last exam date.

Exam Type Fee for
ISA Members/Union Members
Fee for
Affiliate Members, Community Members, and List
Levels I, II, and III Electronic Exam $190 $205 All locations

No-Show and Late Arrivals
For candidates who fail to appear for a scheduled exam, or arrive more than 15 minutes after the scheduled start time, fees will apply. See Reschedule fees without proper advance notification. You must reschedule your exam within your twelve (12) month eligibility period. 

What forms of payment does ISA accept for the application fee and/or private testing fee?
ISA will accept check, certified check, money order, or wire transfer in US Dollars. Make checks payable to ISA. For wire transfer account information, please contact ISA Customer Service at info@isa.org or +1 919-549-8411. The following credit cards are accepted: AMEX, Discover card, Master Card, and VISA. Purchase orders are not accepted.

Payment should be received with the application. If you are sending payment separately please include this information with the applicataion. Applications cannot be processed without payment.

Is the application fee refundable?
CCST fess are NOT refundable. It is the responsibility of the applicant to thoroughly review the requirements for an examination to determine if he/she is qualified. No refunds will be made for applicants who do not show up for testing on the appropriate test date.


Application and Documentation

Please choose the appropriate box on the CCST application for the level you are applying for as well as for electronic testing vs. private site testing. Please review the program requirements in the CCST Handbook. All documentation requirements remain the same whether you test electronically or in a private site.

Does the application have to be typed?
The application may be typed or handwritten legibly in ink. Please do not use pencil.

Where do I mail my completed CCST application form and payment?
Send all materials to one of the following addresses:

1. With check or money order payment
     (through regular postal delivery):

Certified Control Systems Technician Program
P.O. Box 12277
Durham, NC 27709 USA
+1 919-549-8411
2. With credit card payment
    (and for overnight delivery):

Certified Control Systems Technician Program
67 T. W. Alexander Drive
Research Triangle Park, NC 27709 USA
+1 919-549-8411

Will I receive notice of my eligibility status?
Allow up to four weeks after submitting your application for notification of eligibility and eligibility code for electronic exam scheduling. You cannot schedule an electronic exam until your application has been approved and you have received your eligibility notice. For private site exam candidates, you will be contacted by ISA within two weeks of receipt of your application.

What documentation is necessary to meet the testing requirements?
As an applicant, you must meet the testing requirements as outlined in the Program Handbook under Requirements on the CCST web page. Back-up documentation with original signatures that verifies all work experience and training, and official transcripts that document your education are necessary ONLY if your application is audited. See CCST Application Audit Process below.

Certificates of completion do not qualify as documentation of training or as an apprenticeship. Copies of transcripts are not accepted. It is the applicants' responsibility to read, understand, and complete the necessary documentation for the audit process.

Does CST Associate Recognition apply toward the requirements?
Yes, achieving CST in Training Recognition equals one year education. ISA will verify that you are a CSTiT but you must document this on the Education Summary page of the application.

Do all of the details of Work Experience and Education need to be completed on the application?
Yes. ISA reviews the details to ensure your work experience, education, and apprenticeship training meet the minimum requirements for qualification. ISA reserves the right to contact current and previous employers to verify the information submitted. In the event your application is audited, the information received in the application will be compared to what is submitted in the CCST Application Audit Appendix. See CCST Application Audit Process (below).

How do I get verification of my previous employment?
You must contact previous supervisors and have them sign the Verification of Employment form for that particular period of employment. This form is provided in the CCST application. Information needed to process the form includes your name, title, location of employment, name of company, dates of employment, description of work activities, and your supervisor's signature. To meet the requirements for the level for which you are applying, the entire period must be documented by fully completed and signed Verification of Employment forms. ISA will not send these documents to previous employers. It is your responsibility as an applicant to submit all of the necessary documentation.

What if a previous employer is no longer in business or my former supervisor cannot be located? How do I verify this period of employment?
A colleague can verify this period of employment by signing the Verification of Employment form in the presence of a Notary Public.

What if I cannot locate anyone to verify a period of employment?
To apply for certification, you must document the entire period necessary to fulfill the requirement. If you cannot fully document the years, then you must postpone your application.

Does my work experience in HVAC, environmental temperature control, qualify as work experience for the CCST program?
HVAC work experience does qualify as related work experience for testing; however, it does not qualify as instrumentation.

Does my military experience qualify towards the CCST requirements? If so, how do I document this period?
Your military experience will qualify as long as it relates to CCST responsibilities as defined in the program guide. To document this period, a copy of your military DD 214 form and a written or typed description of the duties you performed must be submitted.

Why do I need to keep a copy of my CCST application before submitting it to ISA?
If ISA contacts you regarding your application, you will need to refer to what you submitted. ISA is not able to fax or mail the application if you need this information, or if the application is selected for audit. See CCST Application Audit Process (below).


CCST Application Audit Process

How will I know if I have been audited?

Any CCST applicant selected for audit will receive notification via US Mail at the address used when the CCST application was submitted to ISA. It is the applicants' responsibility to maintain their current, preferred address with ISA to ensure notifications are received.

Why was my application selected for audit?

All CCST applications are subject to audit. A random selection of CCST applications will be chosen for audit each year.

How do I complete the necessary audit documentation?

If your application was selected, you will be required to verify your employment history, education, and apprenticeship training as it relates to your application eligibility. Download the CCST Audit Documentation that was part of the original application and follow the instructions to submit the necessary documentation.

How long do I have to submit audit documentation?

Applicants who are audited must complete the CCST Audit Documentation and return it with all necessary documentation to ISA within sixty (60) days of audit notification. Failure to do so will result in revocation of your application and certification.

This appendix should be completed only if you are notified by ISA that your CCST application is being audited. Please review the audit requirements so you are aware of what documentation you will need to submit in the event that your application is audited.

What if I am unable to provide the necessary documentation?

If you have not yet taken a CCST exam, your application will be denied. If you have already passed a CCST exam your certification will be revoked. See Application and Documentation above to review what information is required.


Examination Process


What will I receive after I submit my CCST application?
If your application does not include all the necessary documentation, you will be notified and given an opportunity to provide the remaining documentation to meet the requirements for the level applied. Once your application is approved, you will receive an Eligibility Letter with information on how to schedule your exam date and location for electronic exams, or a Confirmation Letter with the date, time, and site address of your private site exam.

Once my application is approved, how long am I eligible to test?
You are eligible to take the exam for twelve (12) months after your application is postmarked to ISA. You must complete all testing in the next two testing windows.

When are candidates notified of their certificate status?
Prometric will email results to the candidate after completion of the exam. If a candidate passes, a certificate will be sent within thirty (30) days of the exam date. Failing candidates receive a percentage of each domain on how they performed on the exam by email. The percentage is not used to calculate their testing result.

What if the candidate does not receive their testing results by email from Prometric?
Prometric will email pass or fail results after completion of exam.  If you do not receive it within 24 hours, please contact them at https://scorereports.prometric.com and provide Prometric confirmation number that you received when you scheduled the test and your last name.

How is the passing score set for the CCST exams?
A modified Angoff Method is used to determine the pass point for each form of each exam. The modified Angoff Method uses expert judgements to determine the difficulty level of the exam. The easier the exam, the higher the pass point. Likewise, the more difficult the exam, the lower the pass point.

The following is a basic outline of the modified Angoff Method (some details have been omitted):

  1. A group of Subject Matter Experts (SMEs) independently rate each exam question within a given form of the exam. The ratings are defined as the probability, or likelihood, that an acceptably (minimally) competent person with the requisite education and experience will answer the question correctly. An acceptably (minimally) competent person is defined as someone who adequately performs all job functions safely and requires no further training to do so.
  2. The SMEs review each exam question as group. A statistical consensus is reached for the difficulty rating of each exam question.
  3. After the data are refined, the final step is to calculate the mean, or average, of all the test question ratings. This becomes the overall pass point estimation.

When do I need to arrive at the test site?
For electronic exams, candidates should arrive at the exam location no later than the scheduled exam time. For private exam sites, candidates must report to the exam location 30 minutes prior to the start time of the exam to sign-in and receive instruction. All examinations are given in a four hour time period.

What should I bring with me to the exam site?
The following is a listing of items you need to bring to the exam site. A calculator will be provided on the computer for those taking the exam electronically.

Electronic Exam candidates:

Your Confirmation Letter from Prometric and a government issued photo i.d.

Private Exam candidates:

Your Confirmation Notice from ISA
A government issued photo i.d.
A non-programmable self-powered or battery-operated calculator
Two (2) number 2 pencils

Are there any materials I cannot bring to the exam?
All exams are closed book for both electronic and private site exams. No reference material will be allowed in any exam room. A calculator will be provided on the computer for those taking the exam electronically so electronic exam candidates will not be allowed to bring one in. A location for personal items such as a pocket book, palmtop, mobile phone, or pager will be made available to you. Please note that storage space will be limited.

Is there a grievances/appeal process in the event I am not awarded CCST certification?
If an ISA CCST applicant feels he/she was wrongly denied certification, original or renewal, from the CCST program, then he/she has the right to appeal. To review the Grievances Appeal Process click here.


Resource Materials


What study materials are available to help me prepare for the CCST program?
A study guide is available for each level of CCST certification and provides practice with similar types of questions as those found on the CCST exams. ISA also publishes a technicians guide book series that covers many topics found in CCST. Learn more about these valuable CCST study resources, including how to purchase them, by visiting www.isa.org/books. Contact ISA at +1 919-549-8411 for further information.

Are there any preparatory courses for the CCST program?

A CCST Review Course is available as a preparation course for taking the certification exam at level I. This course is offered by ISA and can be offered at your location. ISA also offers a complete technical skills training path of courses as well as distance education programs that are helpful to those preparing for CCST. An ISA Training Service Consultant can give you more information. Simply e-mail ISA's Senior Learning Consultants at info@isa.org for more information on ISA Training Courses. If you qualify for CCST, you may be eligble to take the exam free if you register for the CCST review course.




If I need to reschedule an electronic exam for Levels I and III, what do I need to do?
You may reschedule only one time and the rescheduled date you choose must be within your twelve (12) month eligibility period. You must reschedule your exam more than 48 hours before the exam date for locations in the United States or Canada or more than 5 days for any other Prometric testing center. If you reschedule with less notice than is required you will incur fees. See reschedule fees without proper notice.

If I need to reschedule an electronic exam for Level II\, what do I need to do?
You may reschedule only one time and the rescheduled date you choose must be within your twelve (12) month eligibility period. You must reschedule your exam more than 5 business days prior to exam date for an exam location in the United States. For canidates outside the United States, you must reschedule 30 days in advance of your scheduled exam date. See reschedule fees without proper notice.

Reschedule Fees without proper advance notification
Candidates who do not sit for their schduled exam and do not give proper advance notice of intent to reschedule their exam will incur fees as follows:

Exam Type Fee for
ISA Members
Fee for
Affiliate Members, Community Members, and List
Levels I, II, and III Electronic Exam $130 $145 All locations
Levels I, II, and III Paper/pencil Exam $130 $145 US Only

If I need to reschedule an exam being offered at a private site, what do I need to do?
You may reschedule only one time and the rescheduled date you choose must be within your twelve (12) month eligiblity period. If you reschedule your private exam date with less than 45 days before the exam date due to a situation which prevents you from taking your exam as scheduled, the fee is listed above. Please mail the reschedule form with payment to ISA. You may reschedule to take the exam electronically if your company cannot arrange another private site. There is no fee if you reschedule your exam prior to 45 days before the exam date.




Is there a time period that must pass before I can retest?
Yes, you must allow thirty (30) days from the last exam date to retest within your twelve (12) month eligibility period. 

Is there a retest fee?
Yes, the retest fee is $190 for members and $205 for non-members per retest. You must submit the retest fee and the form each time you want to retest, and you only pay the retest fee rather than the entire application fee.

How many times can I retest?
You may retest as many times as needed within your twelve (12) month eligibility period by paying the fees below. Retest feeis required each time you retest.



How will I know I need to recertify?

ISA sends recertification reminders in the forms of letters, postcards, and e-mails; however, it is the responsibility of the certificant to send the paperwork in at the appropriate time. Please ensure that you keep your contact information updated with ISA so that you will receive these notifications.

What is the recertification fee?

  • Recertify by PDPs (no exam)
    • $210 ISA Member and Union Member
    • $265 Affiliate Member/Community Member/List
  • Recertify by exam
    • $331 ISA Member and Union Member
    • $415 Affiliate Member/Community Member/List

If you prefer to recertify by mail you should send the CCST Recertification form and check or money order to ISA, CCST, 67 T.W. Alexander Drive, Research Triangle Park, NC 27709. Contact info@isa.org for Wire information. Click here for access to the form

What is a Recertification Audit?

A random selection of current certificate holders will be audited, and those certificants will be required to provide verification of the points




How do I get a copy of my CCST certificate in case I lose it or if my supervisor wants one?
To receive a duplicate copy of your certificate, send a written request to ISA with your mailing address and payment of $15 each for a duplicate certificate or wallet card ($30 for both). Once your payment is received, a certificate and/or wallet card will be mailed to you.

What is the difference between the CCST program and the NICET Certification?
NICET, the National Institute for Certification in Engineering Technologies, offers a four level certification program for instrumentation engineering technologists. The CCST program is designed specifically to the control systems technician, and is more application focused.


Private Testing


How do I establish a local test site for the CCST examinations?
If you are inside the US and have four or more applicants to test, ISA will contact a local proctor to administer the exam at your location at no additional charge. If you have less than four applicants to test, the site fee is $250. Contact ISA for information on private test offerings in the United States.

When are applications due?
Applications for private exam sites must be received by ISA six (6) weeks prior to the desired exam date.