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RETA CIRO Certification Training – Review Courses

RETA CIRO Certification Training. RETA CIRO Review Courses are available. Certified Industrial Refrigeration Operator (CIRO) is designed to assess more advanced concepts, principles, and applications.  A minimum of two years machinery room experience is required to sit for the CIRO certification. 

Ammonia Operator 2 – This class is the next step for advancing ammonia operators and mechanics. This class is not for the stagnant roundsmen. The pre-requisite for this course is ammonia operator 1 or CARO certification, however we recommend at least two years of experience. The ammonia operator 2 class or RETA CIRO Review Course best prepares for the RETA CIRO certification.


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ARTS supports all organizations, associations, and companies with a mission that focuses on safety, thermodynamics, and/or industrial refrigeration while providing training to the individual operating, maintaining, servicing, managing, or supporting ammonia refrigeration systems. We encourage all students to achieve the best they can and continually seek studies, regardless of if their current employer requires training or not. CIRO Test content outline below. 

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Ammonia Refrigeration Training Solutions ARTS – CIRO Certification Prep

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