Reference & AI

DAFMAN 91-203

Air Force

DEPARTMENT OF THE AIR FORCE OCCUPATIONAL SAFETY FIRE AND HEALTH STANDARDS

Reviewed by Guilherme Correia, active-duty U.S. Air Force

DAFMAN 91-203, "DEPARTMENT OF THE AIR FORCE OCCUPATIONAL SAFETY FIRE AND HEALTH STANDARDS", is a Department of the Air Force publication, dated February 24, 2026.

Published

February 24, 2026

OPR

AF/SE

Headquarters, Department of the Air Force

Official document

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DAFMAN 91-203 — index record

NumberDAFMAN 91-203
TitleDEPARTMENT OF THE AIR FORCE OCCUPATIONAL SAFETY FIRE AND HEALTH STANDARDS
PublishedFebruary 24, 2026
Certified currentFebruary 24, 2026
Office of primary responsibilityAF/SE
Issued byHeadquarters, Department of the Air Force
Status on the indexCurrent
Last index actionUpdateContact, June 25, 2026
Source indexAir Force e-Publishing
Index last readOctober 20, 2026

Copied from Air Force e-Publishing (index). The publication itself is the authority; this page does not summarize or interpret it. Verify the current edition on the index before acting.

From the publication itself

Text below is lifted mechanically from the official PDF (216 pages, read October 20, 2026) with no editing or interpretation. Quote the document, not this page.

Purpose, in the publication’s words

This publication is available for downloading or ordering on the e- Publishing website at www.e-Publishing.af.mil. RELEASABILITY: There are no releasability restrictions on this publication.

Summary of changes, as printed

This document is substantially revised and must be completely reviewed. Major changes include adding the applicability to the USSF and clarifying and reinforcing requirements for Process Safety Management, which is now its own standalone chapter, Chapter 33, Process Safety Management (PSM) of Highly Hazardous Chemicals. Additionally, it includes creating a new Chapter 34, Additive Manufacturing Safety, for 3D printing, major changes to Chapter 12, Material Handling Equipment (MHE), regarding inspection criteria for material handling equipment, implementing required changes to confined space requirements recommended and mandated by the Air Force Audit Agency.

Contents

  1. Chapter 1—INTRODUCTIONp. 15
  2. Chapter 2—GENERAL WORK PROCEDURESp. 20
  3. Chapter 3—WEATHER SAFETYp. 33
  4. Chapter 4—SERVICES OPERATIONSp. 36
  5. Chapter 5—NONDESTRUCTIVE INSPECTION (NDI) AND OIL ANALYSISp. 38
  6. Chapter 6—FIRE PREVENTION AND PROTECTIONp. 40
  7. Chapter 7—WALKING – WORKING SURFACESp. 46
  8. Chapter 8—ELECTRICAL SAFETYp. 63
  9. Chapter 9—EMERGENCY SHOWER AND EYEWASH UNITSp. 71
  10. Chapter 10—GROUNDS, MOWING AND AGRICULTURE TRACTORSp. 74
  11. Chapter 11—HAND TOOLS, PORTABLE POWER TOOLS, AND MACHINERYp. 79
  12. Chapter 12—MATERIAL HANDLING EQUIPMENT (MHE)p. 86
  13. Chapter 13—FALL PROTECTIONp. 135
  14. Chapter 14—PERSONAL PROTECTIVE EQUIPMENT (PPE)p. 147
  15. Chapter 15—TRAINING SYSTEMSp. 153
  16. Chapter 16—MOBILE ELEVATING WORK PLATFORMS AND SCAFFOLDINGp. 162
  17. Chapter 17—MISHAP PREVENTION SAFETY SIGNS, TAGS AND LABELINGp. 180
  18. Chapter 18—HYRDROCARBON FUELSp. 187
  19. Chapter 19—COMPRESSED GASESp. 199
  20. Chapter 20—WELDING, CUTTING AND OTHER HOT WORKp. 203
  21. Chapter 21—HAZARDOUS ENERGY CONTROLp. 213
  22. Chapter 22—FLAMMABLES AND COMBUSTIBLESp. 221
  23. Chapter 23—CONFINED SPACESp. 233
  24. Chapter 24—AIRCRAFT FLIGHTLINE – GROUND OPERATIONS AND ACTIVITIESp. 251
  25. Chapter 25—CIVIL ENGINEERINGp. 279
  26. Chapter 26—CRYOGENIC LIQUIDSp. 288
  27. Chapter 27—INTERIOR SPRAY FINISHINGp. 301
  28. Chapter 30—MOTOR VEHICLE – OPERATIONS AND MAINTENANCEp. 336
  29. Chapter 31—COMPOSITE MATERIALSp. 359
  30. Chapter 32—PRECISION MEASUREMENT EQUIPMENT LABORATORYp. 362
  31. Chapter 34—ADDITIVE MANUFACTURING SAFETYp. 374
  32. Attachment 1—GLOSSARY OF REFERENCES AND SUPPORTING INFORMATIONp. 378
All 120 contents entries
  1. Chapter 1—INTRODUCTIONp. 15
  2. 1.1. Objectivep. 15
  3. 1.2. Roles and Responsibilitiesp. 15
  4. 1.3. Waivers, Exemptions and Letters of Interpretationp. 17
  5. 1.4. How to Use This Documentp. 17
  6. 1.5. Applying Standardsp. 17
  7. 1.6. Job Hazard Analysis (JHA)p. 18
  8. 1.7. Documentationp. 18
  9. 1.8. First Aid and Cardiopulmonary Resuscitation (CPR) Trainingp. 19
  10. 1.9. Bloodborne Pathogen Trainingp. 19
  11. Chapter 2—GENERAL WORK PROCEDURESp. 20
  12. 2.1. General Informationp. 20
  13. 2.2. Hazardsp. 20
  14. 2.3. Jewelryp. 21
  15. 2.4. Housekeepingp. 22
  16. 2.5. Office Safetyp. 24
  17. 2.6. Ergonomicsp. 26
  18. 2.7. Roll-up Doorsp. 26
  19. 2.8. Receiving/Loading Docksp. 27
  20. 2.9. Walk-in Refrigerators and Freezersp. 27
  21. 2.10. Manual Material Handling and Lifting Techniquesp. 27
  22. Chapter 3—WEATHER SAFETYp. 33
  23. 3.1. Responsibilitiesp. 33
  24. 3.2. Two-tier Notification Systemp. 33
  25. 3.3. General Lightning Safety for all DAF Activities and Operations. Note:p. 33
  26. Chapter 4—SERVICES OPERATIONSp. 36
  27. 4.1. Purposep. 36
  28. 4.2. Laundryp. 36
  29. 4.3. Lodgingp. 36
  30. 4.4. Food Service Operationsp. 37
  31. Chapter 5—NONDESTRUCTIVE INSPECTION (NDI) AND OIL ANALYSISp. 38
  32. 5.1. Scopep. 38
  33. 5.2. Safety Precautionsp. 38
  34. 5.3. Supervisor Responsibilitiesp. 39
  35. 5.4. NDI Equipment and Fire Protection Systemsp. 39
  36. Chapter 6—FIRE PREVENTION AND PROTECTIONp. 40
  37. 6.1. Fire Extinguishersp. 40
  38. 6.2. General Requirementsp. 42
  39. Chapter 7—WALKING – WORKING SURFACESp. 46
  40. 7.1. General Requirementsp. 46
  41. 7.2. Stairs and Ramps Requirements. (Notep. 52
  42. 7.3. Fixed Laddersp. 54
  43. 7.4. Portable Laddersp. 57
  44. 7.5. Stepladdersp. 61
  45. 7.6. Emergency Operationsp. 62
  46. Chapter 8—ELECTRICAL SAFETYp. 63
  47. 8.1. General Informationp. 63
  48. 8.2. Receptaclesp. 63
  49. 8.3. Plugsp. 63
  50. 8.4. Flexible Cords and Extension Cordsp. 63
  51. 8.5. Disconnecting Means (Circuit Breakers and Disconnect Switches)p. 64
  52. 8.6. Guarding of Live Partsp. 65
  53. 8.7. Equipment Groundingp. 65
  54. 8.8. Restrictionsp. 65
  55. 8.9. Electrical Installations and Equipmentp. 65
  56. 8.10. Additional Electrical Equipment Requirementsp. 66
  57. 8.11. Electronic Equipmentp. 66
  58. 8.12. Emergency Equipment (Electrical Safety)p. 67
  59. 8.13. Automated External Defibrillator (AED)p. 68
  60. 8.14. Lightingp. 69
  61. 8.15. Moisture Guardingp. 69
  62. 8.16. Under-voltage Protectionp. 69
  63. 8.17. Work on Energized Equipmentp. 69
  64. Chapter 9—EMERGENCY SHOWER AND EYEWASH UNITSp. 71
  65. 9.1. Scopep. 71
  66. 9.2. Regulations and Standardsp. 71
  67. 9.3. Equipment - Acquisitionp. 71
  68. 9.4. Location and Installationp. 72
  69. 9.5. Maintenance and Testingp. 73
  70. 9.6. Trainingp. 73
  71. Chapter 10—GROUNDS, MOWING AND AGRICULTURE TRACTORSp. 74
  72. 10.1. General Informationp. 74
  73. 10.2. Inspection/Maintenancep. 74
  74. 10.3. Mowingp. 74
  75. 10.4. Edgersp. 75
  76. 10.5. Commercial Mowing and Turf Care Equipmentp. 75
  77. 10.6. Tree and Hedge Trimmingp. 76
  78. 10.7. Fertilizersp. 76
  79. 10.8. Irrigation Systemsp. 77
  80. 10.9. Agricultural Tractors and Implement Attachmentsp. 77
  81. Chapter 11—HAND TOOLS, PORTABLE POWER TOOLS, AND MACHINERYp. 79
  82. 11.1. General Requirementsp. 79
  83. 11.2. Toolsp. 79
  84. 11.3. Machineryp. 81
  85. 11.4. Specific Requirements for Machineryp. 84
  86. Chapter 12—MATERIAL HANDLING EQUIPMENT (MHE)p. 86
  87. 12.1. Scopep. 86
  88. 12.2. General Requirementsp. 86
  89. 12.3. Acquisitionp. 87
  90. 12.4. Inspectionsp. 88
  91. 12.5. Nuclear-certified Lifting Equipmentp. 89
  92. 12.6. Qualification and Trainingp. 90
  93. 12.7. Testingp. 91
  94. 12.8. Powered Industrial Trucksp. 93
  95. 12.9. Conveyorsp. 97
  96. 12.10. Manual Hoisting and Pulling Devicesp. 98
  97. 12.11. Hoistsp. 99
  98. 12.12. Below-the-Hook Devicesp. 103
  99. 12.13. Overhead, Gantry and Underhung Cranes and Monorail Systemsp. 107
  100. 12.14. Mobile and Locomotive Cranesp. 113
  101. Chapter 13—FALL PROTECTIONp. 135
  102. Chapter 14—PERSONAL PROTECTIVE EQUIPMENT (PPE)p. 147
  103. Chapter 15—TRAINING SYSTEMSp. 153
  104. Chapter 16—MOBILE ELEVATING WORK PLATFORMS AND SCAFFOLDINGp. 162
  105. Chapter 17—MISHAP PREVENTION SAFETY SIGNS, TAGS AND LABELINGp. 180
  106. Chapter 18—HYRDROCARBON FUELSp. 187
  107. Chapter 19—COMPRESSED GASESp. 199
  108. Chapter 20—WELDING, CUTTING AND OTHER HOT WORKp. 203
  109. Chapter 21—HAZARDOUS ENERGY CONTROLp. 213
  110. Chapter 22—FLAMMABLES AND COMBUSTIBLESp. 221
  111. Chapter 23—CONFINED SPACESp. 233
  112. Chapter 24—AIRCRAFT FLIGHTLINE – GROUND OPERATIONS AND ACTIVITIESp. 251
  113. Chapter 25—CIVIL ENGINEERINGp. 279
  114. Chapter 26—CRYOGENIC LIQUIDSp. 288
  115. Chapter 27—INTERIOR SPRAY FINISHINGp. 301
  116. Chapter 30—MOTOR VEHICLE – OPERATIONS AND MAINTENANCEp. 336
  117. Chapter 31—COMPOSITE MATERIALSp. 359
  118. Chapter 32—PRECISION MEASUREMENT EQUIPMENT LABORATORYp. 362
  119. Chapter 34—ADDITIVE MANUFACTURING SAFETYp. 374
  120. Attachment 1—GLOSSARY OF REFERENCES AND SUPPORTING INFORMATIONp. 378

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Air Force index

REF: DAFMAN 91-203, effective February 24, 2026

Air Force e-Publishing — DAFMAN 91-203

This is an index record, not the publication. The official PDF is the authority; verify the current edition before acting.

Reviewed by Guilherme Correia · Military Toolkit editorial

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