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It establishes how to document and approve design changes through DCNs and ECNs before implementation, including construction, fabrication, and incorporation. The manual states applicability to operations, maintenance, and project work involving SSCs. It specifies required workflows and approvals, and it lists excluded change types such as direct drawing revisions, software changes, vendor information, and technical document or interface control 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ERB.","https://schema.org",{"og:url":83,"og:type":124,"og:title":65,"og:site_name":95,"og:description":67},"article",{"robots":126,"canonical":83},"index,follow",{"doc_id":128,"site_id":62},663351,1793226899,{"code":4,"msg":5,"data":131},{"doc_id":128,"user_id":132,"nickname":92,"user_avatar":133,"doc_module":4,"category_id":29,"category_name":30,"doc_title":65,"doc_description":67,"doc_content":134,"file_id":135,"file_url":136,"file_type":137,"file_size":138,"view_count":81,"is_deleted":4,"is_public":8,"is_downloadable":8,"audit_status":8,"page_count":139,"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":129,"read_time":144},687207024643,"https://ap-avatar.wpscdn.com/davatar_3d24733baf745e90a7e4bdd5f77d97b2","| Engineering Change Control Manual\u003Cbr>Document\u003Cbr>Page\u003Cbr>Issue Date | Engineering\u003Cbr>TFC-ENG-DESIGN-C-06, REV M-4\u003Cbr>1 of 29 April 18, 2024 |\n| --- | --- |\n\n\n| Ownership matrix | RPP-27195 |\n| --- | --- |\n\nTABLE OF CONTENTS  \n1.0 PURPOSE AND SCOPE ................................................................................................................ 2  \n2.0 IMPLEMENTATION ..................................................................................................................... 2  \n3.0 RESPONSIBILITIES...................................................................................................................... 2  \n3.1 Quality Assurance............................................................................................................... 2  \n3.2 Commissioning ................................................................................................................... 2  \n3.3 Engineering......................................................................................................................... 3  \n4.0 PROCEDURE................................................................................................................................. 4  \n4.1 General Requirements.........................................................................................................4  \n4.2 Drawing Change Notice Preparation .................................................................................. 6  \n4.3 Engineering Change Notice Preparation............................................................................. 7  \n4.4 Work Authorization Engineering Change Notice Preparation ........................................... 9  \n4.5 Redline Engineering Change Notices ............................................................................... 12  \n4.6 Drawing Change Notice and Engineering Change Notice Release .................................. 12  \n4.7 Off-Shift Drawing Change Notice and Engineering Change Notice Release................... 12  \n4.8 Engineering Change Notice Close-out Process ................................................................ 12  \n4.9 Engineering Change Notice Cancellation ......................................................................... 14  \n5.0 DEFINITIONS .............................................................................................................................. 14  \n6.0 RECORDS .................................................................................................................................... 15  \n7.0 SOURCES..................................................................................................................................... 15  \n7.1 Requirements .................................................................................................................... 15  \n7.2 References ......................................................................................................................... 16  \nTABLE OF FIGURES  \nFigure 1 – DCN Process Flow Chart .......................................................................................................... 18  \nFigure 2 – ECN Process Flow Chart ........................................................................................................... 19  \nFigure 3 – Guidance for Determining the Current Design Configuration .................................................. 20  \nFigure 4 – WA ECN Process Flow Chart ................................................................................................... 21  \nTABLE OF ATTACHMENTS  \nAttachment A – Modification Quality Inspection Plans (MQIP) ............................................................... 22  \nAttachment B – WA ECN Examples.......................................................................................................... 26  \nAttachment C – Trend Codes and Definitions .....................................................................................","cbCaicemcwwiHzRo","https://ap.wps.com/l/cbCaicemcwwiHzRo","pdf",284163,29,"English","# 1.0 PURPOSE AND SCOPE\n# 2.0 IMPLEMENTATION\n# 3.0 RESPONSIBILITIES\n## 3.1 Quality Assurance\n## 3.2 Commissioning\n## 3.3 Engineering\n# 4.0 PROCEDURE\n## 4.1 General Requirements\n## 4.2 Drawing Change Notice Preparation\n## 4.3 Engineering Change Notice Preparation\n## 4.4 Work Authorization Engineering Change Notice Preparation\n## 4.5 Redline Engineering Change Notices\n## 4.6 Drawing Change Notice and Engineering Change Notice Release\n## 4.7 Off-Shift Drawing Change Notice and Engineering Change Notice Release\n## 4.8 Engineering Change Notice Close-out Process\n## 4.9 Engineering Change Notice Cancellation\n# 5.0 DEFINITIONS\n# 6.0 RECORDS\n# 7.0 SOURCES\n## 7.1 Requirements\n## 7.2 References","[{\"question\":\"What is the purpose of this Engineering Change Control Manual?\",\"answer\":\"It defines the process and responsibilities for controlling changes to drawings for TOC facilities and ensures changes are documented and approved before implementation.\"},{\"question\":\"What types of changes are covered by the DCN/ECN process?\",\"answer\":\"It covers engineering design changes developed by TOC or vendor personnel, including how to create, revise, and process DCNs and ECNs prior to construction, fabrication, and incorporation.\"},{\"question\":\"Which change types are explicitly not covered by this procedure?\",\"answer\":\"It does not apply to direct drawing revisions, changes to plant installed software, changes to vendor information, changes to technical documents, changes to interface control documents, and changes to ERB.\"}]","Engineering Change Control Manual - Engineering TFC-ENG-DESIGN-C-06 - Rev M-4 - Document Control | PDF",73]