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It explains consumer-focused program testing expectations, sample size approaches for verification, and when single-test versus four-unit spot-check procedures apply. The directive details statistical determination of failure using confidence limits and 5% tolerances, and outlines reporting timelines and escalation paths for testing failures to EPA and potentially DOE.",{"@graph":69,"@context":123},[70,84,106],{"@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":40,"@type":76,"position":81},"https://docshare.wps.com/document/research-report/",3,{"item":83,"name":65,"@type":76,"position":19},"https://docshare.wps.com/document/energy-star-verification-testing-for-certification-bodies-test-sample-sizes-and-determining-testing-failures-non-lighting-products/268995/",{"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/energy-star-verification-testing-for-certification-bodies-test-sample-sizes-and-determining-testing-failures-non-lighting-products/268995.png","ImageObject",300,407,{"name":92,"@type":93},"Paura","Person",{"url":74,"name":95,"@type":96},"DocShare","Organization","application/pdf","2026-11-04","2026-09-15",true,{"@type":102,"interactionType":103,"userInteractionCount":105},"InteractionCounter",{"@type":104},"ViewAction",12,{"@type":107,"mainEntity":108},"FAQPage",[109,115,119],{"name":110,"@type":111,"acceptedAnswer":112},"What is the purpose of ENERGY STAR verification and challenge testing for certification bodies?","Question",{"text":113,"@type":114},"The purpose is to verify that qualified ENERGY STAR products consistently meet ENERGY STAR performance requirements, accounting for manufacturing and testing variability, and to address failures through defined escalation steps.","Answer",{"name":116,"@type":111,"acceptedAnswer":117},"When does verification testing use a single test versus four units with a spot check?",{"text":118,"@type":114},"Single-test verification is used when the product was qualified based on a single test. Four-unit verification with a spot check is used when the product was qualified based on multiple test samples, such as under a DOE certification sampling plan tied to Federal test methods.",{"name":120,"@type":111,"acceptedAnswer":121},"How is a testing failure determined under the four-unit verification approach?",{"text":122,"@type":114},"Results from four units are used to calculate confidence limits (including 5% tolerances) and compare them against lower or upper control criteria depending on whether the specification concerns energy efficiency or energy consumption.","https://schema.org",{"og:url":83,"og:type":125,"og:title":65,"og:site_name":95,"og:description":67},"article",{"robots":127,"canonical":83},"index,follow",{"doc_id":129,"site_id":62},268995,1789440330,{"code":4,"msg":5,"data":132},{"doc_id":129,"user_id":133,"nickname":92,"user_avatar":134,"doc_module":4,"category_id":39,"category_name":40,"doc_title":65,"doc_description":67,"doc_content":135,"file_id":136,"file_url":137,"file_type":138,"file_size":139,"view_count":105,"is_deleted":4,"is_public":8,"is_downloadable":8,"audit_status":8,"page_count":81,"language":140,"language_code":63,"site_id":62,"html_lang":63,"table_of_contents":141,"faqs":142,"seo_title":143,"seo_description":67,"update_tm":130,"read_time":39,"preview_page_count":4},13056712833777,"https://ap-avatar.wpscdn.com/davatar_29158cc5080c5b710cf443261637dec0","|  |  |  |  |\n| --- | --- | --- | --- |\n|  | \u003Cbr>THIRD PARTY CERTIFICATION IMPLEMENTATION\u003Cbr>ENERGY STAR® PRODUCTS |  |  |\n|  | SUBJECT: ENERGY STAR Verification Testing for Certification BodiesTest Sample Sizes and Determining Testing Failures (Non-Lighting Products) | DIRECTIVE NO. 2011-04 |  |\n|  |  | Revised Date: 3/06/2024 |  |\n| Introduction\u003Cbr>Third-party certification requirements put in place by the U.S. Environmental Protection Agency (EPA) for ENERGY STAR products include provisions for verifying the performance of qualified products through verification and challenge testing.\u003Cbr>Consumers who rely on the ENERGY STAR label for making purchasing decisions expect that the unit they purchase meets ENERGY STAR requirements. The EPA has established program testing requirements to fulfill that consumer expectation and ensure that all units of a qualified model, regardless of manufacturing and testing variability, meet ENERGY STAR performance requirements. For certain product categories currently subject to Federal test methods, the ENERGY STAR specification has allowed for testing consistent with these testing requirements, which require testing a sample comprised of no less than two units, and using statistical methods to determine the certified rating of each basic model. Recognizing this variation in sample size approach for qualification, EPA and DOE require that products be tested for purposes of verification consistent with how they were tested for purposes of qualification using one of the following approaches:\u003Cbr>1. If a product was qualified based on a single test, which ENERGY STAR specifications require for products not subject to testing under Federal test methods, then verification testing will involve a single test.1\u003Cbr>2. If a product was qualified based on multiple test samples,(e.g. , per DOE certification sampling plan associated with Federal test method), then four units will be procured at once for verification testing. A spot check will be performed on the first unit. If the test result of the spot check fails by 5% or more, the additional 3 units will be tested and statistical methods applied to the results for purposes of determining a failure.\u003Cbr>Testing failures will be referred to EPA for further consideration and a final determination regarding ENERGY STAR compliance. Testing failures that indicate a potential issue with respect to Federal energy conservation standards will be referred to DOE for further testing consistent with DOE’s sampling plans for enforcement testing of products as outlined in 10 CFR Part 429.\u003Cbr>1Approach 1 will apply if multiple tests are required to determine qualification, but all units must individually meet the ENERGY STAR requirements (e.g. , displays, imaging equipment) . |  |  |  |\n\nDetermination of Testing Failure for the ENERGY STAR Verification Program  \nThe following approaches will be applied by DOE and CBs when conducting verification testing of ENERGY STAR products, depending on how the product was originally qualified.  \nApproach 1: Manufacturer qualifies product for ENERGY STAR based on one representative model  \nOne unit will be selected, obtained, and tested. Consistent with requirements for ENERGY STAR qualification, the measured performance must be equal to or better than the ENERGY STAR specification requirements.  \n݅݋݊ ݐ݂݁ܿ݅݅ܿܽ݌ݏ ݅݋݊ ݐ݉݌ݑݏ݊ܿ݋ ܴܣܵܶܧ ൑ ்௘௦௧݅݋݊ݐ݉݌ݑݏ݊݋ܥ݅݋݊ ݐ݂݁ܿ݅݅ܿܽ݌ݏ ݕܴ ݂݂݁݅ܿ݅݁݊ܿܣܵܶܧ ൒ ்௘௦௧ݕ݂݂݅ܿ݅݁݊ܿܧ  \nApproach 2: Manufacturer qualifies product for ENERGY STAR based on multiple test samples  \nFour units will be selected and obtained at once. One unit will initially be tested for a spot check. If the tested unit fails to meet the requirement by less than 5% of the applicable ENERGY STAR specification, no further tests will be conducted and the model will be considered to meet ENERGY STAR requirements. If the measured performance is not within this range, the three additional units will be tested immediately. In this case, manufacturers sh","cbCair3N7Srw5UG7","https://ap.wps.com/l/cbCair3N7Srw5UG7","pdf",158673,"English","# Introduction\n# Determination of Testing Failure for the ENERGY STAR Verification Program\n## Approach 1: Manufacturer qualifies product for ENERGY STAR based on one representative model\n## Approach 2: Manufacturer qualifies product for ENERGY STAR based on multiple test samples\n# Consequences of Testing Failures","[{\"question\":\"What is the purpose of ENERGY STAR verification and challenge testing for certification bodies?\",\"answer\":\"The purpose is to verify that qualified ENERGY STAR products consistently meet ENERGY STAR performance requirements, accounting for manufacturing and testing variability, and to address failures through defined escalation steps.\"},{\"question\":\"When does verification testing use a single test versus four units with a spot check?\",\"answer\":\"Single-test verification is used when the product was qualified based on a single test. Four-unit verification with a spot check is used when the product was qualified based on multiple test samples, such as under a DOE certification sampling plan tied to Federal test methods.\"},{\"question\":\"How is a testing failure determined under the four-unit verification approach?\",\"answer\":\"Results from four units are used to calculate confidence limits (including 5% tolerances) and compare them against lower or upper control criteria depending on whether the specification concerns energy efficiency or energy consumption.\"}]","ENERGY STAR® Verification Testing for Certification Bodies - Test Sample Sizes and Determining Testing Failures (Non-Lighting Products) | PDF"]