CRES Certification
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How do I apply to take CRES certification exams?

  • All RETA certification candidates must begin by submitting a completed exam certification application to RETA HQ with payment.  Click here for the Certification section of our online store.
  • After review and approval by RETA, your application will be processed and you will receive an email instructing you to call RETA HQ (541-497-2955) to schedule your exam at a RETA testing center.
  • RETA created Study Guides to help candidates prepare to perform well on exams.  Each Study Guide can be downloaded free from the RETA website.  Study Guides include reference information that will be needed to answer questions during each test.  These references will appear on-screen during each test.   Candidates are not allowed to use these study guides during a RETA certification examination.  Candidates should become familiar with these references for the RETA credential they are working toward before taking the test.    
  • The CRES exam study guide can be downloaded below.
  • Candidates are encouraged to use the exam study guides and other test preparation materials on the RETA website to help them prepare for an exam.

Certification Fees

$495 RETA member rate; $695 non-member rate


RETA membership must be current at the time of application in order to qualify for the member rate. If your company is a corporate member, the certification applicant must be one of the company’s designated members to qualify for the member rate.


CRES Resources

Item Name Posted By Date Posted
CRES Certification Application Handbook PDF (1.43 MB) Administration 5/31/2017
CRES Study Guide PDF (2.96 MB) Administration 11/21/2016
CRES Vi Tool XLSX (45.01 KB) Administration 2/22/2017
CRES Door Tool XLSX (184.17 KB) Administration 2/22/2017
CRES Defrost Tool XLSX (207.17 KB) Administration 2/22/2017

Refrigerating Engineers & Technicians Association
Toll Free: 844.801.3711 · Phone: 541.497.2955 · Fax: 541.497.2966
1035 2nd Ave SE, Albany, OR 97321