[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"detail-sidebar-cat-0-en-105":3,"doc-seo-511147-105":59,"doc-detail-511147-en":130},{"code":4,"msg":5,"data":6},0,"success",[7,13,18,23,28,33,38,43,48,51,55],{"id":8,"doc_module":4,"doc_module_name":9,"category_name":10,"show_sort_weight":11,"slug":12},1,"Document","Story & Novel",90,"story-novel",{"id":14,"doc_module":4,"doc_module_name":9,"category_name":15,"show_sort_weight":16,"slug":17},2,"Literature",80,"literature",{"id":19,"doc_module":4,"doc_module_name":9,"category_name":20,"show_sort_weight":21,"slug":22},4,"Exam",70,"exam",{"id":24,"doc_module":4,"doc_module_name":9,"category_name":25,"show_sort_weight":26,"slug":27},5,"Comic",60,"comic",{"id":29,"doc_module":4,"doc_module_name":9,"category_name":30,"show_sort_weight":31,"slug":32},6,"Technology",50,"technology",{"id":34,"doc_module":4,"doc_module_name":9,"category_name":35,"show_sort_weight":36,"slug":37},7,"Healthcare",40,"healthcare",{"id":39,"doc_module":4,"doc_module_name":9,"category_name":40,"show_sort_weight":41,"slug":42},8,"Research & Report",30,"research-report",{"id":44,"doc_module":4,"doc_module_name":9,"category_name":45,"show_sort_weight":46,"slug":47},9,"Religion & Spirituality",20,"religion-spirituality",{"id":46,"doc_module":4,"doc_module_name":9,"category_name":49,"show_sort_weight":46,"slug":50},"World Cup","world-cup",{"id":52,"doc_module":4,"doc_module_name":9,"category_name":53,"show_sort_weight":52,"slug":54},10,"Lifestyle","lifestyle",{"id":56,"doc_module":4,"doc_module_name":9,"category_name":57,"show_sort_weight":24,"slug":58},19,"General","general",{"code":4,"msg":60,"data":61},"ok",{"site_id":62,"language":63,"slug":64,"title":65,"keywords":66,"description":67,"schema_data":68,"social_meta":123,"head_meta":125,"extra_data":127,"updated_unix":129},105,"en","diver-periodic-health-assessment-and-medical-administration-instruction-4000-04","Diver Periodic Health Assessment and Medical Administration - Instruction 4000-04","","Instruction 4000-04 sets the requirements and procedures for conducting Diver Periodic Health Assessments (PHA) for Canadian Forces Health Services Group personnel. All individuals undergoing hyperbaric exposure must have a current Diver PHA before exposure. It defines shallow-water and deep-water diver categories, including depth limits and no-decompression compliance, and specifies that the directive applies to CAF personnel, DND public servants, and contractors providing diver health services. Key roles and terminology supporting the PHA process are established.",{"@graph":69,"@context":122},[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":35,"@type":76,"position":81},"https://docshare.wps.com/document/healthcare/",3,{"item":83,"name":65,"@type":76,"position":19},"https://docshare.wps.com/document/diver-periodic-health-assessment-and-medical-administration-instruction-4000-04/511147/",{"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/diver-periodic-health-assessment-and-medical-administration-instruction-4000-04/511147.png","ImageObject",300,407,{"name":92,"@type":93},"ahduag","Person",{"url":74,"name":95,"@type":96},"DocShare","Organization","application/pdf","2026-11-09","2026-10-06",true,{"@type":102,"interactionType":103,"userInteractionCount":44},"InteractionCounter",{"@type":104},"ViewAction",{"@type":106,"mainEntity":107},"FAQPage",[108,114,118],{"name":109,"@type":110,"acceptedAnswer":111},"Who must complete a current Diver Periodic Health Assessment (PHA) before hyperbaric exposure?","Question",{"text":112,"@type":113},"All individuals undergoing hyperbaric exposure—including divers, diving medical officers, physician assistants, aviation physiology technicians, SAR technicians, and others undergoing additional CAF training—are required to have a current Diver PHA prior to exposure.","Answer",{"name":115,"@type":110,"acceptedAnswer":116},"What distinguishes Shallow Water Divers from Deep Water Divers in this instruction?",{"text":117,"@type":113},"Shallow Water Divers typically dive to no more than 15 m and never exceed 30 m, and must dive within no-decompression limits. Deep Water Divers include specified PID and clearance diver categories that may dive beyond 30 m and/or beyond no-D limits.",{"name":119,"@type":110,"acceptedAnswer":120},"Which personnel does the instruction apply to?",{"text":121,"@type":113},"It applies to all CAF personnel, DND public servants, contractors, and subcontractors who provide health services to CAF members who are divers (trained or candidates) as described in the directive.","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},511147,1791359635,{"code":4,"msg":5,"data":131},{"doc_id":128,"user_id":132,"nickname":92,"user_avatar":133,"doc_module":4,"category_id":34,"category_name":35,"doc_title":65,"doc_description":67,"doc_content":134,"file_id":135,"file_url":136,"file_type":137,"file_size":138,"view_count":44,"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":144,"read_time":26,"preview_page_count":4},3985747870414,"https://ap-avatar.wpscdn.com/davatar_9964176cb1d06d4a9deccf72a44ae3dc","Diver Periodic Health Assessment and Medical Administration  \nDocument Status: Current  \nDocument Type: Instruction  \nDocument Number: 4000-04  \nOriginal Source: Med Dir 2/05  \nApproval: Surg Gen  \nSME: D RCN Surgeon  \nOPI: RCN Surgeon  \nEffective Date: 29 Jun 06  \nLast Reviewed:  \nBackground  \nSupersession  \n1. This Instruction supersedes:  \na. Med Dir 2/05  \nb. CFMO 27-07  \nPurpose  \n2. The purpose of this Instruction is to provide direction to all Canadian Forces Health Services Group (CF H Svcs Gp) personnel regarding the requirements and procedures for conducting Diver Periodic Health Assessments.  \nContext  \n3. IAW Ref B , all individuals who undergo hyperbaric exposure (Divers, Diving Medical Officers, Physician Assistants, Aviation Physiology Technicians, SAR Technicians or civilians/others undergoing additional Canadian Armed Forces (CAF) training), are required to have a current Diver Periodic Health Assessment (PHA) prior to such exposure.  \n4. Shallow Water Divers (SWDs, as defined below) usually dive to a depth of no more than 15m (50 feet) and never exceed 30m (100 feet) . They are all required to dive within the no-decompression limits. Deep Water Divers (DWDs) are comprised of Class 2, 3 and 4 PID and Clearance Divers, who may dive deeper than 30m, and/or beyond no-D limits.  \nApplication  \n5. This Instruction applies to all CAF personnel, Department of National Defence (DND) Public Servants, contractors and sub-contractors who provide health services to CAF members. In particular, it applies to all personnel (CAF, DND Public Servants, contractors, and sub-contractors) who provide health services to CAF members who are Divers (trained or candidates) as described below.  \nAbbreviations  \n6. The following table contains abbreviations used in this instruction.  \n\n| Abbreviation | Term in Full |\n| --- | --- |\n| ADMO | Advanced Diving Medical Officer |\n| ADMT | Advanced Diving Medical Technician |\n| AGE | Arterial Gas Embolism |\n| AUMB | Aerospace and Undersea Medical Board |\n| BAvMed | Basic Aviation Medicine |\n| bc-TTE | bubble contrast – Transthoracic Echocardiogram |\n| BDMT | Basic Diving Medical Technician |\n| BDMO | Basic Diving Medical Officer |\n| CABA | Compressed Air Breathing Apparatus |\n| CAFDESG | Canadian Forces Diving Effectiveness Steering Group |\n| CDAC | Clearance Diver Assessment Centre |\n| CDM | Consultant in Diving Medicine |\n| CDHM | Consultant in Diving and Hyperbaric Medicine (CFEME/DRDC Toronto) |\n| CDSM | Consultant in Diving and Submarine Medicine |\n| CF/CAF | Canadian Forces/Canadian Armed Forces |\n| CFEME | Canadian Forces Environmental Medicine Establishment |\n| CFHIS | Canadian Forces Health Information System |\n| CF H Svcs | Canadian Forces Health Services |\n| CF H Svcs Gp | Canadian Forces Health Services Group |\n| CF HCC | Canadian Forces Health Care Centre |\n| CFB | Canadian Forces Base |\n| Cl Div | Clearance Diver |\n| CLDO | Clearance Diving Officer |\n| D Med Pol | Director – Medical Policy |\n\n\n| DCS/DCI | Decompression Sickness / Decompression Illness |\n| --- | --- |\n| D Dive S | Directorate of Diving Safety |\n| DWD | Deep Water Diver |\n| DMO | Diving Medical Officer |\n| DMT | Diving Medical Technician |\n| DOHSWG | Diving Occupational Health and Safety Working Group |\n| DON | Dysbaric Osteonecrosis |\n| DRDC | Defence Research & Development Canada |\n| ECG | Electrocardiogram |\n| FSMO | Fleet Support Medical Officer |\n| HCP | Health Care Provider |\n| IAW | In accordance with |\n| In Att | Inside Attendant (also known as Inside Tender) |\n| JTF | Joint Task Force |\n| LBS | Long Bone Series |\n| MEL | Medical Employment Limitation |\n| MOC | Military Occupation Code |\n| MOSID | Military Occupational Structure Identification |\n| NCM | Non-Commisioned Member |\n| No-D | No Decompression |\n| OT | Occupational Transfer |\n| PA | Physician Assistant |\n| PFT | Pulmonary Function Test |\n| PHA | Periodic Health Assessment |\n| PID | Port Inspection Diver |\n| PSO | Personnel Selection Officer |\n| PTT","cbCaidLT7ZjmFbmE","https://ap.wps.com/l/cbCaidLT7ZjmFbmE","pdf",187288,24,"English","# Background\n# Purpose\n# Context\n## Diver categories and diving limits\n# Application\n# Abbreviations\n# Definitions","[{\"question\":\"Who must complete a current Diver Periodic Health Assessment (PHA) before hyperbaric exposure?\",\"answer\":\"All individuals undergoing hyperbaric exposure—including divers, diving medical officers, physician assistants, aviation physiology technicians, SAR technicians, and others undergoing additional CAF training—are required to have a current Diver PHA prior to exposure.\"},{\"question\":\"What distinguishes Shallow Water Divers from Deep Water Divers in this instruction?\",\"answer\":\"Shallow Water Divers typically dive to no more than 15 m and never exceed 30 m, and must dive within no-decompression limits. Deep Water Divers include specified PID and clearance diver categories that may dive beyond 30 m and/or beyond no-D limits.\"},{\"question\":\"Which personnel does the instruction apply to?\",\"answer\":\"It applies to all CAF personnel, DND public servants, contractors, and subcontractors who provide health services to CAF members who are divers (trained or candidates) as described in the directive.\"}]","Diver Periodic Health Assessment and Medical Administration - Instruction 4000-04 | PDF",1791248815]