RETA Breeze Sept/Oct 2025

wants operators, supervisors and techni cians to understand how to apply their knowledge of industrial refrigeration to keep everyone safe and to improve efficiency in the systems they manage. Those also are among the primary reasons RETA credentials have become the Gold Standard worldwide for industrial refrig eration operators and technicians. This increases the value of each RETA-certified employee to the employer and the industry. Reducing energy costs and insurance premiums while keeping people safe benefits everyone.

eration system. Candidates must determine what information in a system screen is relevant to the question, whether tables and/ or formulas are required, and which of the answers may properly address the conditions in that system as presented in the screen. While the tools to answer these questions appear in RETA books and other references, the answers to these questions do not. The same principle applies in CARO. A critical concept in protecting the health and safety of operators, and anyone else, in or near a refrigeration facility is to know when an operator should refer to an SDS or the manufacturer’s manual to prevent or solve a problem. Some candidates fail by not referring to the SDS for questions that are answered in the SDS. Candidates will not find the answers to every question on a RETA credentialing examination in the references for that test. They will find the tools and concepts needed to answer each question. RETA

conditions and a list of questions to help candidates understand how to use information in these generic system screens to evaluate operating conditions in each system. These study guides also include 24 system screens that support questions for each test. Candidates are not told when to use tables, formulas or the SDS. RETA provides a supplemental answer key for CIRO and CRST on the RETA website certification screen that explains answers to 28 questions based on the sample screen, plus eight questions based on a ladder diagram. These demonstrate to candidates the pathway to answering questions about the sample system in the study guide by using formulas, tables and screens in the references document for that test. This supplemental answer key was created to help candidates understand how to use information in RETA books and references to evaluate what is happening in a refrig-

Dr. Ron Rodgers RETA Accreditation Manager and Psychometrician

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SEPTEMBER/OCTOBER 2025