Reference & AI

DAFI 48-151

Air Force

THERMAL STRESS PROGRAM

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

DAFI 48-151, "THERMAL STRESS PROGRAM", is a Department of the Air Force publication, dated May 2, 2022.

Published

May 2, 2022

OPR

AF/SG

Headquarters, Department of the Air Force

Official document

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DAFI 48-151 — index record

NumberDAFI 48-151
TitleTHERMAL STRESS PROGRAM
PublishedMay 2, 2022
Certified currentMay 2, 2022
Office of primary responsibilityAF/SG
Issued byHeadquarters, Department of the Air Force
Status on the indexCurrent
Last index actionIC, June 27, 2025
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 (28 pages, read October 20, 2026) with no editing or interpretation. Quote the document, not this page.

Purpose, in the publication’s words

This instruction establishes procedures and assigns responsibilities for executing the DAF Thermal Stress Program to prevent and manage thermal illness and optimize the safety and health of Department of Air Force (DAF) personnel.

Summary of changes, as printed

This interim change (1) updates office symbols and responsibilities; (2) clarifies Installation Occupational and Environmental Medicine Consultant (IOEMC) and Occupational and Environmental Health Working Group (OEHWG) requirements; (3) clarifies responsibilities of Aerospace Physiology and Weather; (4) updates heat stress program elements; (5) clarifies the elements of thermal stress prevention during training; and (6) corrects the Fighter Index of Thermal Stress (FITS) Chart. A margin bar (|) indicates newly revised material.

Contents

  1. Chapter 1—PROGRAM OVERVIEWp. 5
  2. Chapter 2—ROLES AND RESPONSIBILITIESp. 6
  3. Chapter 3—HEAT STRESS PROGRAM ELEMENTSp. 15
  4. Chapter 5—COLD STRESS PROGRAM ELEMENTSp. 23
  5. Chapter 6—FIGHTER INDEX OF THERMAL STRESS (FITS)p. 25
  6. Attachment 1—GLOSSARY OF REFERENCES AND SUPPORTING INFORMATIONp. 28
All 43 contents entries
  1. Chapter 1—PROGRAM OVERVIEWp. 5
  2. 1.1. Purposep. 5
  3. 1.2. Generalp. 5
  4. 1.3. Keywordsp. 5
  5. Chapter 2—ROLES AND RESPONSIBILITIESp. 6
  6. 2.3. Air Force Surgeon General (AF/SG)p. 6
  7. 2.5. Major Command/Field Command Surgeon (MAJCOM/FLDCOM/SG)p. 7
  8. 2.6. Installation Commanderp. 7
  9. 2.7. Installation Environmental, Safety and Occupational Health Councilp. 8
  10. 2.8. Medical Group Commander/MTF Directorp. 8
  11. 2.9. Chief of Aerospace Medicine (SGP) or local equivalentp. 8
  12. 2.10. Bioenvironmental Engineering Flight Commander or local equivalentp. 9
  13. 2.11. Public Health (PH) Flight Commander or local equivalentp. 10
  14. 2.12. Geographically Separated Unit Commander or Delegate (Medical Aid Station)p. 11
  15. 2.13. Aerospace Physiologyp. 11
  16. 2.14. United States Air Force School of Aerospace Medicine (USAFSAM)p. 11
  17. 2.16. Base Civil Engineer (BCE)p. 12
  18. 2.17. Installation/Unit Safety Officep. 12
  19. 2.18. Unit Fitness Assessment Cell Managerp. 12
  20. 2.19. Mission Swimming Pool Managersp. 12
  21. 2.20. Unit/Organizational Commanderp. 13
  22. 2.21. Workplace Supervisorp. 13
  23. 2.22. Workerp. 14
  24. Chapter 3—HEAT STRESS PROGRAM ELEMENTSp. 15
  25. 3.1. Heat Illnessesp. 15
  26. 3.2. Critical Elements of a Heat-Related Illness Prevention Programp. 15
  27. 3.3. Acclimatization Programp. 16
  28. 3.4. Training Programp. 16
  29. 3.5. Heat Alert Programp. 16
  30. 3.6. Medical Surveillance Programp. 17
  31. 3.7. Special Surveillance Environmental Monitoringp. 17
  32. 3.8. Heat Stress Guidelinesp. 17
  33. 4.1. Thermal Illness Prevention for Airmen/Guardians in Trainingp. 20
  34. 4.2. Unit Physical Trainingp. 20
  35. Chapter 5—COLD STRESS PROGRAM ELEMENTSp. 23
  36. 5.1. Cold Illnessesp. 23
  37. 5.2. Critical Elements of a Cold-Related Illness Prevention Programp. 23
  38. Chapter 6—FIGHTER INDEX OF THERMAL STRESS (FITS)p. 25
  39. 6.1. FITSp. 25
  40. 6.2. Assessing FITS Reference Valuesp. 25
  41. 6.3. FITS Tables Using Dew Point and Dry Bulb Temperaturep. 25
  42. 6.4. FITS Actionsp. 25
  43. Attachment 1—GLOSSARY OF REFERENCES AND SUPPORTING INFORMATIONp. 28

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Air Force index

REF: DAFI 48-151, effective May 2, 2022

Air Force e-Publishing — DAFI 48-151

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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