CRST Application Fee
You must already have a current (non expired) RETA CARO or CIRO Certification to take the Certified Refrigeration Service Technician (CRST) exam or documentation of at least 4 years of industrial refrigeration experience.
Industrial refrigeration experience documentation must be submitted with the CRST exam application if you do not have a current RETA CARO or CIRO Certification.
You must fill out an CRST exam application and submit to: email@example.com.
Click here for the certification page and corresponding forms.