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It explains the certification framework, including the Core Section and specific certification classes, the typical test format of multiple-choice questions, and the passing requirement. The guide then details core topics such as ozone depletion mechanisms, chlorine involvement in CFC/HCFC refrigerants, atmospheric layer concepts, refrigerant identification concepts, and comparative impacts on ozone depletion and global warming.",{"@graph":69,"@context":126},[70,84,105],{"@type":71,"itemListElement":72},"BreadcrumbList",[73,77,79,82],{"item":74,"name":75,"@type":76,"position":8},"https://docshare.wps.com","Home","ListItem",{"item":78,"name":9,"@type":76,"position":14},"https://docshare.wps.com/document/",{"item":80,"name":20,"@type":76,"position":81},"https://docshare.wps.com/document/exam/",3,{"item":83,"name":65,"@type":76,"position":19},"https://docshare.wps.com/document/epa-608-certification-study-guide-core-section-exam-preparation/395235/",{"url":83,"name":65,"@type":85,"image":86,"author":91,"headline":65,"publisher":94,"fileFormat":97,"inLanguage":63,"description":67,"dateModified":98,"datePublished":99,"encodingFormat":97,"isAccessibleForFree":100,"interactionStatistic":101},"DigitalDocument",{"url":87,"@type":88,"width":89,"height":90},"https://docshare.wps.com/thumbnails/epa-608-certification-study-guide-core-section-exam-preparation/395235.png","ImageObject",300,407,{"name":92,"@type":93},"Levi","Person",{"url":74,"name":95,"@type":96},"DocShare","Organization","application/pdf","2026-10-28","2026-09-26",true,{"@type":102,"interactionType":103,"userInteractionCount":44},"InteractionCounter",{"@type":104},"ViewAction",{"@type":106,"mainEntity":107},"FAQPage",[108,114,118,122],{"name":109,"@type":110,"acceptedAnswer":111},"What is required to become EPA 608 certified for HVACR technicians?","Question",{"text":112,"@type":113},"Technicians must become certified for the equipment they work on under the EPA refrigerant recovery and recycling program and pass the required test(s).","Answer",{"name":115,"@type":110,"acceptedAnswer":116},"How is the EPA 608 exam structured and what passing score is required?",{"text":117,"@type":113},"The exam consists of multiple-choice questions across a required Core Section and one to three additional sections depending on the certification type. A 70% passing rate is required.",{"name":119,"@type":110,"acceptedAnswer":120},"What does the Core Section cover in EPA Section 608 Refrigerant Recovery?",{"text":121,"@type":113},"It covers the environmental impact of refrigerants, including CFCs and HCFCs, as well as the Clean Air Act and EPA regulations.",{"name":123,"@type":110,"acceptedAnswer":124},"How do CFC and HCFC refrigerants contribute to ozone depletion?",{"text":125,"@type":113},"Chlorine contained in CFC/HCFC refrigerants eventually drifts into the stratosphere where increased UV breaks them down, releasing chlorine that destroys ozone molecules.","https://schema.org",{"og:url":83,"og:type":128,"og:title":65,"og:site_name":95,"og:description":67},"article",{"robots":130,"canonical":83},"index,follow",{"doc_id":132,"site_id":62},395235,1791087839,{"code":4,"msg":5,"data":135},{"doc_id":132,"user_id":136,"nickname":92,"user_avatar":137,"doc_module":4,"category_id":19,"category_name":20,"doc_title":65,"doc_description":67,"doc_content":138,"file_id":139,"file_url":140,"file_type":141,"file_size":142,"view_count":44,"is_deleted":4,"is_public":8,"is_downloadable":8,"audit_status":8,"page_count":143,"language":144,"language_code":63,"site_id":62,"html_lang":63,"table_of_contents":145,"faqs":146,"seo_title":147,"seo_description":67,"update_tm":148,"read_time":149,"preview_page_count":4},7971461740909,"https://ap-avatar.wpscdn.com/davatar_155a257f0dc6eb9ab79c44ca47cae57d","EPA 608 Certification Study Guide  \nForeword  \nAll HVACR technicians must become certified for the equipment they work on, under the Environmental Protection Agency’s (EPA), refrigerant recovery and recycling program.  \nIn order to become certified you must pass a test or series of tests, consisting of multiple choice questions. The certifications and sections to the test are:  \n􀁸 Core Section. Information that applies to all certification types.  \n􀁸 Certification Class I. Small appliances under 5 pounds of refrigerant.  \n􀁸 Certification Class II. High Pressure. HVACR units over 5 pounds.  \n􀁸 Certification Class III. Low Pressure units including Centrifugal chillers.  \n􀁸 Certification Universal. All three, Type I, Type II, and Type III.  \nMost residential and small commercial HVACR technicians need to be “Class II Certified” Everyone must pass the core test (25 questions) and one to 3 of the other sections. If you take and pass all four sections you become universal certified.  \nA 70% passing rate is required.  \nThe test questions are made available to testing organizations from the EPA bank of test questions.  \nContents  \nContents ................................................................................................................................................ 3  \nCORE SECTION, EPA Section 608 Refrigerant Recovery................................................................................ 4  \nTYPE 1 (Small Appliances) ........................................................................................................................... 17  \nTYPE II (High-Pressure) ................................................................................................................................ 20  \nTYPE 3 (Low-pressure) ................................................................................................................................ 25  \nEPA 608 Definitions..................................................................................................................................... 31  \nCore Test Sample Questions ....................................................................................................................... 34  \nType I Sample Test Questions ..................................................................................................................... 46  \nType II Sample Test Questions .................................................................................................................... 51  \nType III Sample Test Questions ................................................................................................................... 57  \nCORE SECTION, EPA Section 608 Refrigerant Recovery  \nThis study guide follows the outline from the EPA describing the subject material to be used for certification exam questions. The titles displayed as   Descriptions displayed in italics are from the EPA that outlines subjects to be covered … are from the EPA.  \nThe other text following the highlighted text provides further explanation.  \nThe CORE section is required for all certifications. This section covers the environmental impact of refrigerants, CFC’s and HCFC’s, the Clean Air Act and EPA regulations.  \n... Destruction of ozone by chlorine...  \nOzone Depletion  \nChlorine reacts with Ozone and creates “Chlorine Monoxide”. Chlorine Monoxide doesn’t last long and the molecules soon return to the original chlorine state. This reaction continues with one chlorine destroying thousands of Ozone molecules.  \nThe primary objective of EPA Section 608, is to prevent further “Depletion of the Ozone layer”in the earth’s stratosphere. Most of the Ozone is in the layer of the atmosphere called the stratosphere. The Troposphere is the first layer extending from the ground to 6-7 miles above the surface. The stratosphere is located from 6-7 miles up, to 30 miles above the earth’s surface.  \n... Presence of chlorine in CFC and HCFC refrigerants...  \nRefrigerants, CFC an","cbCailQdxL7Azq6h","https://ap.wps.com/l/cbCailQdxL7Azq6h","pdf",1323917,66,"English","# EPA 608 Certification Study Guide\n## Foreword\n## Exam Structure and Certification Classes\n## Core Section: EPA Section 608 Refrigerant Recovery\n## Ozone Depletion\n## Refrigerants: CFC, HCFC, HFC Identification Concepts\n## Ranking Refrigerants for Potential Damage","[{\"question\":\"What is required to become EPA 608 certified for HVACR technicians?\",\"answer\":\"Technicians must become certified for the equipment they work on under the EPA refrigerant recovery and recycling program and pass the required test(s).\"},{\"question\":\"How is the EPA 608 exam structured and what passing score is required?\",\"answer\":\"The exam consists of multiple-choice questions across a required Core Section and one to three additional sections depending on the certification type. A 70% passing rate is required.\"},{\"question\":\"What does the Core Section cover in EPA Section 608 Refrigerant Recovery?\",\"answer\":\"It covers the environmental impact of refrigerants, including CFCs and HCFCs, as well as the Clean Air Act and EPA regulations.\"},{\"question\":\"How do CFC and HCFC refrigerants contribute to ozone depletion?\",\"answer\":\"Chlorine contained in CFC/HCFC refrigerants eventually drifts into the stratosphere where increased UV breaks them down, releasing chlorine that destroys ozone molecules.\"}]","EPA 608 Certification Study Guide - Core Section Exam Preparation | PDF",1790417158,166]