General Requirements

To become an ISA CCST®, you must meet the education and work experience requirements for the level you are testing, and pass an exam. You will be eligible to sit for the exam when you have met the criteria listed below. Please ensure you meet these requirements when you are prompted to self-certify during the exam fee checkout process.

  • You agree to commit to the ISA Code of Ethics
  • You meet the education and work experience requirements outlined below for the level you are testing
  • You acknowledge that you may be randomly chosen for an audit and will need to provide supporting documentation for number 2 above.

Education and Work Experience Requirements

Work experience and educational periods may not overlap when compiling the total number of years for a level.

Level I

Must have at least five years of combined education, training, and/or experience. The following elements may be used to satisfy this requirement:

  1. A registered apprenticeship in an instrumentation, measurement and control, electronics, electrical, and/or mechanical program, if applicable.
  2. Academic degree (or equivalent) in a related technology area, to a maximum of four years.
  3. Successfully completing the CST Associate Recognition Program (Equals one year of education).
  4. A minimum of one year related work experience.

Level II — Specialist

Must have at least seven years of combined education, training, and/or experience. The following elements may be used to satisfy this requirement:

  1. A registered apprenticeship in an instrumentation, measurement and control, electronics, electrical, and/or mechanical program if applicable.
  2. Academic degree (or equivalent) in a related technology area, to a maximum of four years.
  3. Related work experience, including at least two years in instrumentation/measurement and control.

Level lll — Master

Must have at least 13 years of combined education, training, and/or experience. The following elements may be used to satisfy this requirement:

  1. A registered apprenticeship in an instrumentation, measurement and control, electronics, electrical, and/or mechanical program, if applicable.
  2. Academic degree (or equivalent) in a related technology area, to a maximum of four years.
  3. Related work experience, including at least five years in instrumentation/measurement and control.

Military and Professional experience

Your military experience will qualify as long as it relates to CCST responsibilities as defined in the program guide. A copy of your military DD 214 form and a written or typed description of the duties you performed can document your military experience.

HVAC and environmental temperature control work experience does qualify as related work experience for testing; however, it does not qualify as instrumentation.

Application Audit 

ISA reserves the right to audit information provided in your certification application. A random selection of applicants will be chosen for audit each year. Any CCST applicant selected for audit will receive notification via email and/or US Mail at the address of record. It is the applicants' responsibility to maintain their current, preferred address with ISA to ensure notifications are received. 

If your application has been selected, you will be required to verify your employment history, position of responsible charge, apprenticeship training and/or education as it relates to your application eligibility. Applicants who are audited must complete the CCST Audit Documentation Form (PDF) 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.