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EPA Certification Exam Questions and Answers Latest 2023
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EPA Certification Exam Questions and Answers Latest 2023 Which Refrigerants contain the most chlorine? - CFC's As of what date did it become unlawful to intentionally release Class 1 and Class 2 refrigerants to the atmosphere? - July 1, 1992 Which Refrigerants have the lowest zone depletio...
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