Attachment 3 - DAFMAN 91-203 dated 24 Feb 26.pdf

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This is the Department of the Air Force Manual 91-203 (DAFMAN 91-203), dated February 24, 2026, establishing occupational safety, fire, and health standards for all Department of the Air Force personnel, including civilian employees, uniformed members of the Regular Air Force, Air Force Reserve, Air National Guard, United States Space Force, and Civil Air Patrol. The manual implements Department of the Air Force Policy Directive 91-2 and incorporates compliance with Title 29 Code of Federal Regulations Chapter XVII (OSHA standards) and Department of Labor requirements. The manual is mandatory and applies to all civilian and military personnel with contractual obligations to abide by DAF publications. It establishes minimum safety, fire protection, and occupational health standards, including additional requirements beyond OSHA standards.

The manual encompasses 34 chapters covering comprehensive safety requirements across diverse operational areas including general work procedures, weather safety, fire prevention, electrical safety, fall protection, personal protective equipment, aircraft flightline operations, confined spaces, hazardous materials handling, welding and hot work, machinery operations, material handling equipment, civil engineering activities, and emerging areas such as additive manufacturing and process safety management of highly hazardous chemicals. Key compliance requirements include job hazard analysis implementation, documentation using automated systems or AFTO Forms, mandatory first aid and CPR training, bloodborne pathogen training where applicable, and specific training protocols for equipment operation. Supervisors are responsible for ensuring employee safety through monthly spot-inspections, provision of required training using manufacturer instructions, job safety briefings for higher-risk tasks, and enforcement of all OSH guidance. The manual includes detailed specifications for equipment inspection, maintenance procedures, fire extinguisher provisions, confined space entry protocols, aircraft servicing operations, and material handling equipment qualifications. Waivers and exemptions follow tiered approval authorities, with all approved waivers requiring notification to the appropriate OPR within 30 days. The document supersedes the previous version dated March 25, 2022, and reflects updates for USSF applicability and enhanced requirements for process safety management and additive manufacturing safety.

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Text version

BY ORDER OF THE

SECRETARY OF THE AIR FORCE

DEPARTMENT OF THE AIR FORCE

MANUAL 91-203

24 FEBRUARY 2026

Safety

DEPARTMENT OF THE AIR FORCE

OCCUPATIONAL SAFETY, FIRE, AND

HEALTH STANDARDS

COMPLIANCE WITH THIS PUBLICATION IS MANDATORY

ACCESSIBILITY: 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.

OPR: HQ AFSEC/SEG Certified by: AF/SE

(Col Michael A. Thomas)

Supersedes: DAFMAN91-203, 25 March 2022 Pages: 413

This manual implements Department of the Air Force Policy Directive (DAFPD) 91-2, Safety

Programs, and is consistent with parts of Title 29 Code of Federal Regulations (CFR), Chapter

XVII, Occupation Safety and Health Administration (OSHA), Department of Labor (DoL). This manual defines the Air Force’s minimum safety, fire protection and occupational health standards, including additional requirements not addressed by the OSHA standards. This publication applies to all civilian employees and uniformed members of the Regular Air Force, Air Force Reserve

(AFR), the Air National Guard (ANG), the United States Space Force (USSF), the Civil Air Patrol when conducting missions as the official Air Force Auxiliary, and those with a contractually obligation to abide by the terms of Department of the Air Force (DAF) publications. This publication requires the collection and/or maintenance of information protected by the Privacy Act of 1974 authorized by Department of Defense Directive (DoDD) 5400.11, DoD Privacy Program.

The applicable System of Records Notice (SORNs) F024 AF IL C, Motor Vehicle Operator’s

Records, and F031 AF SP L, Traffic Accident and Violation Reports, are available at https://pclt.defense.gov/DIRECTORATES/Privacy-and-Civil-Liberties-

Directorate/Privacy/SORNs. Ensure all records generated as a result of processes prescribed in this publication adhere to AFI 33-322, Records Management and Information Governance

Program, and are disposed in accordance with (IAW) Air Force Records Disposition Schedule, which is located in the Air Force Records Information Management System. Refer recommended changes and questions about this publication to the Office of Primary Responsibility (OPR) using the DAF Form 847, Recommendation for Change of Product; route DAF Forms 847 from the field through the appropriate functional chain of command. Refer to Department of the Air Force http://www.e-publishing.af.mil/ https://pclt.defense.gov/DIRECTORATES/Privacy-and-Civil-Liberties-Directorate/Privacy/SORNs https://pclt.defense.gov/DIRECTORATES/Privacy-and-Civil-Liberties-Directorate/Privacy/SORNs

2 DAFMAN91-203 24 FEBRUARY 2026

Instruction (DAFI) 91-202, The Department of the Air Force (DAF) Mishap Prevention Program, for guidance on submitting requests for exemptions to requirements of this publication. Report conflicts in guidance between this publication, federal standards or other DAF directives through

Major Command (MAJCOM), Field Command (FLDCOM), Direct Reporting Unit (DRU) or

Field Operating Agency (FOA) occupational safety offices to Headquarters Air Force (HAF)

Safety Center, Occupational Safety Division, Standards and Policy Branch (HQ AFSEC/SEGS), 9700 G Avenue SE, Kirtland AFB NM 87117-5670. This manual may be supplemented at any level, but to ensure standardization, any organization supplementing this manual must send the implementing publication to AFSEC, Occupational Safety Division (AFSEC/SEG) for review and coordination before publishing. The authorities to waive wing/delta/unit-level requirements in this publication are identified with a Tier (“T-0, T-1, T-2, T-3”) number following the compliance statement. See Department of the Air Force Manual (DAFMAN) 90-161, Publishing Processes and Procedures, for a description of the authorities associated with the Tier waiver approval authority. For non-tiered compliance items, the requestor’s commander is the approval authority.

Submit requests for waivers through the chain of command to the appropriate Tier/Waiver approval authority, or alternately, to HQ AFSEC/SEG for waivers/exemptions to non-tiered compliance items. The requested office must send a copy of all approved waivers to the OPR of the Higher Headquarters publication being waived (see DAFI 90-160, Publications and Forms

Management, paragraph 1.5.3.2) within 30 days of approval. Sending an email to the waived publication OPR that includes a completed DAF Form 679, Department of the Air Force

Publication Compliance Item Waiver Request/Approval, or equivalent, will suffice. Requirements in this publication are mandatory, unless otherwise indicated. Not included are safety, fire prevention and occupational health requirements addressed in specific equipment technical orders

(TOs). Compliance with the attachments in this publication is mandatory. The use of the name or mark of any specific manufacturer, commercial product, commodity, or service in this publication does not imply endorsement by the DAF.

SUMMARY OF CHANGES

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.

Chapter 1—INTRODUCTION 15

1.1. Objective

1.2. Roles and Responsibilities

1.3. Waivers, Exemptions and Letters of Interpretation

1.4. How to Use This Document

1.5. Applying Standards

DAFMAN91-203 24 FEBRUARY 2026 3

1.6. Job Hazard Analysis (JHA)

1.7. Documentation

1.8. First Aid and Cardiopulmonary Resuscitation (CPR) Training

1.9. Bloodborne Pathogen Training

Chapter 2—GENERAL WORK PROCEDURES 20

2.1. General Information

2.2. Hazards

2.3. Jewelry

2.4. Housekeeping

2.5. Office Safety

2.6. Ergonomics

2.7. Roll-up Doors

2.8. Receiving/Loading Docks

2.9. Walk-in Refrigerators and Freezers

2.10. Manual Material Handling and Lifting Techniques

Figure 2.1. How to Lift Properly

Chapter 3—WEATHER SAFETY 33

3.1. Responsibilities

3.2. Two-tier Notification System

3.3. General Lightning Safety for all DAF Activities and Operations. Note:

3.4. Snow Safety for all Department of the Air Force (DAF) Activities and

Operations

Chapter 4—SERVICES OPERATIONS 36

4.1. Purpose

4.2. Laundry

4.3. Lodging

4.4. Food Service Operations

Chapter 5—NONDESTRUCTIVE INSPECTION (NDI) AND OIL ANALYSIS 38

5.1. Scope

5.2. Safety Precautions

5.3. Supervisor Responsibilities

5.4. NDI Equipment and Fire Protection Systems

4 DAFMAN91-203 24 FEBRUARY 2026

Chapter 6—FIRE PREVENTION AND PROTECTION 40

6.1. Fire Extinguishers

Figure 6.1. AFCEC Guide to the Provision of Organizational Portable Fire Extinguishers and

Real Property Extinguisher Cabinets/Mountingghi

6.2. General Requirements

Chapter 7—WALKING – WORKING SURFACES 46

7.1. General Requirements

7.2. Stairs and Ramps Requirements. (Note

7.3. Fixed Ladders

7.4. Portable Ladders

Table 7.1. Ladders Workload Ratings

7.5. Stepladders

7.6. Emergency Operations

Chapter 8—ELECTRICAL SAFETY 63

8.1. General Information

8.2. Receptacles

8.3. Plugs

8.4. Flexible Cords and Extension Cords

8.5. Disconnecting Means (Circuit Breakers and Disconnect Switches)

8.6. Guarding of Live Parts

8.7. Equipment Grounding

8.8. Restrictions

8.9. Electrical Installations and Equipment

8.10. Additional Electrical Equipment Requirements

8.11. Electronic Equipment

8.12. Emergency Equipment (Electrical Safety)

8.13. Automated External Defibrillator (AED)

8.14. Lighting

8.15. Moisture Guarding

8.16. Under-voltage Protection

8.17. Work on Energized Equipment

Chapter 9—EMERGENCY SHOWER AND EYEWASH UNITS 71

9.1. Scope

DAFMAN91-203 24 FEBRUARY 2026 5

9.2. Regulations and Standards

9.3. Equipment - Acquisition

9.4. Location and Installation

9.5. Maintenance and Testing

9.6. Training

Chapter 10—GROUNDS, MOWING AND AGRICULTURE TRACTORS 74

10.1. General Information

10.2. Inspection/Maintenance

10.3. Mowing

10.4. Edgers

10.5. Commercial Mowing and Turf Care Equipment

10.6. Tree and Hedge Trimming

10.7. Fertilizers

10.8. Irrigation Systems

10.9. Agricultural Tractors and Implement Attachments

Chapter 11—HAND TOOLS, PORTABLE POWER TOOLS, AND MACHINERY 79

11.1. General Requirements

11.2. Tools

11.3. Machinery

Table 11.1. OSHA Standards for Machinery

11.4. Specific Requirements for Machinery

Chapter 12—MATERIAL HANDLING EQUIPMENT (MHE) 86

12.1. Scope

12.2. General Requirements

12.3. Acquisition

12.4. Inspections

12.5. Nuclear-certified Lifting Equipment

12.6. Qualification and Training

12.7. Testing

12.8. Powered Industrial Trucks

12.9. Conveyors

12.10. Manual Hoisting and Pulling Devices

6 DAFMAN91-203 24 FEBRUARY 2026

12.11. Hoists

12.12. Below-the-Hook Devices

12.13. Overhead, Gantry and Underhung Cranes and Monorail Systems

12.14. Mobile and Locomotive Cranes

12.15. Derricks

12.16. Related Hoisting Equipment

12.17. Portable Automotive Lifting Devices and Related Equipment

Table 12.1. Quick Reference Guide for Material Handling Equipment

Table 12.2. Synthetic Web Slings. 1,000 Pounds per Inch of Width – Single Ply (Rated in capacity in pounds)

Table 12.3. Synthetic Web Slings. 1,200 Pounds per Inch of Width – Single Ply (Rated capacity in pounds)

Table 12.4. Synthetic Web Slings. 1,600 Pounds per Inch of Width – Single Ply (Rated capacity in pounds)

Table 12.5. Number of Spacing of Clips for Ropes of Various Sizes. (If manufacturer’s recommendations are not available)

Table 12.6. Minimum Allowable Chain Size at Any Point of Link

Figure 12.1. Hand Signals for Controlling Overhead and/or Gantry Crane Operations

Figure 12.2. Hand Signals for Controlling Overhead and/or Gantry Crane Operations (con’t). . 130

Figure 12.3. Hook Inspection Areas

Figure 12.4. Right and Wrong Way of Using Cable Clips

Figure 12.5. Proper Method of Installing Cable Clips

Figure 12.6. Double Base Clamp

Figure 12.7. Joining Wire Ropes

Figure 12.8. Dead-Ending Rope in a Socket

Figure 12.9. Correct and Incorrect Way to Measure Wire Rope. (Note: Always read the widest diameter.)

Figure 12.10. Wire Rope Wear and Damage (con’t)

Figure 12.11. Wire Rope Wear and Damage (con’t)

Figure 12.12. Wire Rope Wear and Damage (con’t)

Figure 12.13. Wire Rope Wear and Damage (con’t)

Chapter 13—FALL PROTECTION 135

13.1. Scope

13.2. Fall Protection Program

DAFMAN91-203 24 FEBRUARY 2026 7

13.3. Fall Hazard Survey

13.4. Written Fall Protection and Rescue Procedures

13.5. Fall Protection Plans

13.6. Training

13.7. Fall Protection Equipment and General Information

13.8. Incident Investigation

13.9. Fall Protection Assessments

Chapter 14—PERSONAL PROTECTIVE EQUIPMENT (PPE) 147

14.1. Scope

14.2. Training

14.3. Job Hazard Analysis (JHA) and Equipment Selection

14.4. Proper Care and Maintenance

Chapter 15—TRAINING SYSTEMS 153

15.1. Scope

15.2. General Requirements

15.3. Facility Requirements

15.4. Training Systems Requirements

15.5. Requirements of Wheeled Vehicle Egress Assistance Trainers

15.6. Requirements for Aircraft Flight and Similarly High Value Training Systems

15.7. Upgrade of Existing Aircraft Flight and Similarly High Value Training Systems. . 161

Chapter 16—MOBILE ELEVATING WORK PLATFORMS AND SCAFFOLDING 162

16.1. Scope

16.2. Hazards

16.3. Training

16.4. Vehicle-Mounted Elevating and Rotating Work Platforms

16.5. Manually Propelled and Self-Propelled Mobile Work Platform and Scaffolds

(Towers)

Figure 16.1. Ascending/Descending Work Platform

16.6. Scaffolding

16.7. Tubular Welded Frame Scaffolds

16.8. Tubular Welded Sectional Folding Scaffolds

16.9. Tube and Coupler Scaffolds

Table 16.1. Types of Scaffolding (not all inclusive)

8 DAFMAN91-203 24 FEBRUARY 2026

Chapter 17—MISHAP PREVENTION SAFETY SIGNS, TAGS AND LABELING 180

17.1. Scope

Table 17.1. Regulatory Guidance for Mishap Prevention Safety Signs, Tags and Labeling

17.2. Hazards and General Information

17.3. Training

17.4. Sign Requirements

17.5. Safety, Fire Prevention and Health Tag Requirements

17.6. Administrative Devices

17.7. Safety Color Coding, Labeling and Marking for Piping Systems

Chapter 18—HYRDROCARBON FUELS 187

18.1. Scope

18.2. Hazards

18.3. Training

18.4. Personal Protective Equipment (PPE)

18.5. Housekeeping

18.6. Fire Prevention and Protection

18.7. Inspection

18.8. Fuel Storage Systems

18.9. Fuel Servicing Operations

18.10. Aircraft Servicing

18.11. Fuel Laboratory Operations

Chapter 19—COMPRESSED GASES 199

19.1. Scope

19.2. General Requirements

19.3. Storage

19.4. Disposal and Shipping

Chapter 20—WELDING, CUTTING AND OTHER HOT WORK 203

20.1. Scope

20.2. Hazards

20.3. Acquisition

20.4. Training and Qualification

20.5. Precautions

DAFMAN91-203 24 FEBRUARY 2026 9

20.6. Personnel Protective Equipment (PPE)

20.7. Types of Welding Equipment

20.8. Hot Work Locations

20.9. Contractors

20.10. Hot Work Permit

Table 20.1. How To Fill Out DAF Form 592, Hot Work Permit

Chapter 21—HAZARDOUS ENERGY CONTROL 213

21.1. Scope

Table 21.1. Common Hazardous Energy Categories and Corresponding Sources

21.2. Hazardous Energy Control Program

21.3. Training

21.4. Program Self-Inspections

21.5. Authorized Lockout and Tagout Devices

21.6. Hazardous Energy Control Procedures

Figure 21.1. Eight-Step Hazardous Energy Control Procedure Checklist

Figure 21.2. Three-Step Release from Hazardous Energy Control Procedure Checklist

21.7. Hazardous Energy Control Procedures When Establishing an Electrically Safe

Work Condition

21.8. Contractors

Chapter 22—FLAMMABLES AND COMBUSTIBLES 221

22.1. Scope

22.2. Hazards

22.3. Training

22.4. Personal Protective Equipment (PPE)

22.5. Housekeeping

22.6. Fire Protection

22.7. Building and Equipment Requirements

22.8. Handling and Dispensing

Table 22.1. Classifications of Flammable and Combustible Liquids

Chapter 23—CONFINED SPACES 233

23.1. Scope

23.2. Definitions

23.3. Hazards

10 DAFMAN91-203 24 FEBRUARY 2026

Table 23.1. Common Hazards Involving Confined Spaces (Not all-inclusive)

23.4. Responsibilities

23.5. Written Confined Space Program

23.6. Entry into Immediately Dangerous to Life and Health (IDLH) Conditions

23.7. Master Entry Plan

23.8. Non-permit Confined Space Entry

23.9. MAJCOM/FLDCOM Identified Aircraft Confined Spaces

23.10. Training

23.11. Instructions for Completing the DAF Form 1024, Confined Space Entry Permit. .. 249

23.12. Contractor Requirements

Chapter 24—AIRCRAFT FLIGHTLINE – GROUND OPERATIONS AND ACTIVITIES 251

24.1. Scope

24.2. Specific Requirements

24.3. Flightline Potentially Hazardous Areas and Operations

24.4. Additional PPE Requirements

24.5. Aircraft Parking Requirements

24.6. Adverse Weather Conditions

Table 24.1. Adverse Weather High Wind Safeguards

24.7. Towing and Taxiing Aircraft

24.8. Aircraft Jacking Operations

24.9. Aircraft Engine Operations

24.10. Jet Aircraft Requirements

24.11. Aircraft Cleaning

24.12. Aircraft Tire Mounting and Servicing Operations

24.13. Flightline Vehicle Operations

24.14. Aircraft Hangar Operations

24.15. Aircraft Shop and Flightline Maintenance Operations

24.16. Fall Protection Requirements

24.17. Safety in Flightline Contractor Operations

Chapter 25—CIVIL ENGINEERING 279

25.1. Scope

Table 25.1. Relevant CE-related References

25.2. Supervisory Responsibilities

DAFMAN91-203 24 FEBRUARY 2026 11

25.3. Compressed Air

25.4. Shoring and Trenching

25.5. Barricades and Traffic Signs

25.6. Sanitation

25.7. Restrictions

25.8. Equipment Operations and Pavements

25.9. Carpentry and Structural Maintenance

25.10. Protective Coating Maintenance

25.11. Plumbing Maintenance

25.12. Refrigeration and Air Conditioning Maintenance

25.13. Heating Systems and Central Heating Plant Maintenance

25.14. Water and Wastewater Treatment

25.15. Aircraft Arresting Systems

25.16. Miscellaneous

Chapter 26—CRYOGENIC LIQUIDS 288

26.1. Specific Hazards

26.2. General Requirements

26.3. Cryogenic Storage Facility Siting

26.4. Occupational Health

26.5. Safety Precautions When Working with LN2, LOX, LH2 and LNG

26.6. Fire Prevention and Protection

26.7. Electrical Safety

26.8. Housekeeping

26.9. Receipt, Storage and Issue of LN2 or LOX

26.10. Common Cryogenic Liquids, Their Properties, and Precautions

Chapter 27—INTERIOR SPRAY FINISHING 301

27.1. Scope

27.2. Safety

27.3. Health/Environmental Protection

27.4. Fire Prevention

27.5. Ventilation Systems

27.6. Storage and Handling

27.7. Electrical

12 DAFMAN91-203 24 FEBRUARY 2026

27.8. Location of Paint Shops, Dope Shops, and Spray-Finishing Operations

27.9. Paint Spray Booths

27.10. Compressed Air Paint Spraying

27.11. Drying Ovens

27.12. Spray Painting of Aircraft

27.13. Painting Radio and Radar Equipment

27.14. Electrostatic Paint Spraying

27.15. Airless Paint Spraying

27.16. Aerosol Cans of Spray Paint

27.17. Powder Coating

27.18. Organic Peroxide Coating

Chapter 28—COMMUNICATION CABLE, ANTENNA AND COMMUNICATION

SYSTEMS 315

28.1. Scope

28.2. General Safety Practices

28.3. Training

28.4. Safety Equipment and Devices

28.5. Tools and Equipment

28.6. High Voltage

28.7. Aerial Work

28.8. Ground-Controlled Approach Radars

28.9. Single Phase Portable and Vehicle-Mounted Generators

28.10. Repairs and Adjustments

28.11. Power Distribution Panels

28.12. Radar and Microwave Equipment

28.13. Entering Manholes, Handholes, and Unvented Vaults

28.14. Cables

28.15. Special Purpose Vehicles

Chapter 29—BATTERIES – MAINTENANCE, HANDLING, AND STORAGE

REQUIREMENTS 330

29.1. Scope

29.2. Safety

29.3. General Facility and Equipment Requirements for Battery Rooms and Areas

DAFMAN91-203 24 FEBRUARY 2026 13

29.4. Fire Prevention

29.5. Ventilation Systems

29.6. Storage and Handling

29.7. Electrical

29.8. Installation and Care of Vehicle and Support Equipment Batteries

29.9. Aircraft Battery and Electrical System Specific Requirements

Chapter 30—MOTOR VEHICLE – OPERATIONS AND MAINTENANCE 336

30.1. Scope

Table 30.1. Motor Vehicle Guidance—Operation and Maintenance (O&M)

30.2. Specific Hazards

30.3. General Safety

30.4. Occupational Health

30.5. Facility and Equipment Requirements for Vehicle Maintenance Operations

30.6. Fire Prevention

30.7. Ventilation

30.8. Cleaning With Solvents

30.9. Paint Shop

30.10. Air Compressors

30.11. Compressed Gas Cylinders

30.12. Lifting Devices

30.13. Wheel and Tire Maintenance

30.14. Maintenance Operations

Chapter 31—COMPOSITE MATERIALS 359

31.1. Scope

31.2. Specific Responsibilities

31.3. General Requirements

31.4. Specific Applications

31.5. Hazardous Waste Disposal

31.6. Special Mishap Considerations

31.7. Use of Composite Materials in New System Acquisition, and System and Process

Modifications

Chapter 32—PRECISION MEASUREMENT EQUIPMENT LABORATORY 362

32.1. Scope

14 DAFMAN91-203 24 FEBRUARY 2026

32.2. Hazards

32.3. Ventilation Systems

32.4. Electrical Safety for PMEL Operations

32.5. Radioactive Material Safety

32.6. Equipment/Component Cleaning

32.7. Tools and Equipment

Chapter 33—PROCESS SAFETY MANAGEMENT (PSM) OF HIGHLY HAZARDOUS

CHEMICALS 369

33.1. Scope

33.2. OSHA Regulation

33.3. Responsibilities

33.4. Chemical Process and Storage Review

33.5. Training

Table 33.1. Process Safety Management (PSM) Decision Flow Chart

Chapter 34—ADDITIVE MANUFACTURING SAFETY 374

34.1. Scope

34.2. Responsibilities

34.3. Types of Additive Manufacturing

34.4. Categories of Part Processing

34.5. Hazards

34.6. Exposure Controls

34.7. Training

Attachment 1—GLOSSARY OF REFERENCES AND SUPPORTING INFORMATION 378

Attachment 2—SAFETY INSTRUCTIONS TO BE POSTED IN ALL FUELS

LABORATORIES 410

Attachment 3—MINIMUM MANDATORY REQUIREMENTS FOR VEHICLE-

MOUNTED ELEVATING AND ROTATING WORK PLATFORMS,

AERIAL LIFT TRAINING PLANS, MANUALLY PROPELLED

ELEVATING AERIAL PLATFORMS, SELF-PROPELLED

ELEVATING WORK PLATFORMS, AND MOBILE TOWERS 411

DAFMAN91-203 24 FEBRUARY 2026 15

Chapter 1

INTRODUCTION

1.1. Objective.

1.1.1. OSHA safety guidance published in the DoL 29 CFR series provides employees with a safe and healthy workplace. OSHA dictates what must be accomplished in the workplace, but in some cases, not necessarily how it will be accomplished, or by whom. Refer to AFSEC

Occupational Safety SharePoint® site for Introduction to OSHA Standards training information located at https://usaf.dps.mil/teams/AFSEC-

SEG/SEGS%20Public/Forms/AllItems.aspx?as=json&FolderCTID=0x012000D03CA30

64AB0BB4CA2705F0FFC828818&id=%2Fteams%2FAFSEC-

SEG%2FSEGS%20Public%FOSHA.

1.1.2. Commanders are responsible for the safety of their facilities and personnel, including the correction of all identified hazards and deficiencies in their workplaces. This publication compliments DAFI 91-202 and assigns responsibilities to individuals or functions to help commanders manage their safety and health program, ensuring they comply with OSHA, Department of Defense (DoD), and DAF guidance. This publication provides uniform guidance, which safety staffs and commanders may supplement when additional or more stringent safety, fire prevention and health criteria are required.

1.1.3. MAJCOMs/FLDCOMs may have more stringent or restrictive requirements than those contained in this publication or other DAF Occupational Safety and Health (OSH) publications/standards. Therefore, all requests for interpretations or clarifications concerning these publications must be forwarded through the servicing MAJCOM/FLDCOM/DRU/FOA safety, health, and/or civil engineering organization, as applicable. Note: With respect to references in this manual to medical treatment facilities, pursuant to 10 United States Code

(USC) § 1073c, the Defense Health Agency, a combat support agency, will be responsible for their administration and management; the details of these responsibilities are still being worked and finalized. (T-0)

1.2. Roles and Responsibilities.

1.2.1. All HAF elements will ensure policies and procedures are consistent with the guidance of this manual.

1.2.2. Headquarters, Air Force Safety Center (AFSEC) will:

1.2.2.1. Formulate and disseminate policy. Clarify roles, responsibilities, and guidance applicable to all areas of safety.

1.2.2.2. Act as coordination authority for safety waivers associated with Tier1 and above wing/delta-level requirements in this manual.

1.2.3. MAJCOMs, FLDCOMs, DRUs and FOAs will provide program oversight and supplement safety and health guidance, as necessary, ensuring safety training is available to subordinate organizations.

1.2.4. Commanders and Functional Managers will:

https://usaf.dps.mil/teams/AFSEC-SEG/SEGS%20Public/Forms/AllItems.aspx?as=json&FolderCTID=0x012000D03CA3064AB0BB4CA2705F0FFC828818&id=%2Fteams%2FAFSEC-SEG%2FSEGS%20Public%25FOSHA https://usaf.dps.mil/teams/AFSEC-SEG/SEGS%20Public/Forms/AllItems.aspx?as=json&FolderCTID=0x012000D03CA3064AB0BB4CA2705F0FFC828818&id=%2Fteams%2FAFSEC-SEG%2FSEGS%20Public%25FOSHA https://usaf.dps.mil/teams/AFSEC-SEG/SEGS%20Public/Forms/AllItems.aspx?as=json&FolderCTID=0x012000D03CA3064AB0BB4CA2705F0FFC828818&id=%2Fteams%2FAFSEC-SEG%2FSEGS%20Public%25FOSHA https://usaf.dps.mil/teams/AFSEC-SEG/SEGS%20Public/Forms/AllItems.aspx?as=json&FolderCTID=0x012000D03CA3064AB0BB4CA2705F0FFC828818&id=%2Fteams%2FAFSEC-SEG%2FSEGS%20Public%25FOSHA

16 DAFMAN91-203 24 FEBRUARY 2026

1.2.4.1. Ensure applicable occupational safety and health (OSH) guidance for workplace and operations is available to all personnel.

1.2.4.2. Enforce and promote compliance with occupational safety, fire prevention and health program requirements in their areas of responsibility.

1.2.4.3. Provide a safe and healthy workplace via a monthly spot-inspection program.

1.2.4.4. Provide employees with training in job safety, fire prevention and health, as required by:

1.2.4.4.1. OSHA directives.

1.2.4.4.2. DAFOSH directives.

1.2.4.4.3. DAFIs, DAFMANs, and associated publications.

1.2.5. Supervisor. Supervisors will require employees to notify them in advance if they have a medical condition or are taking medications that could interfere with their safe performance of assigned duties. Supervisors will ensure employees are trained, using manufacturer’s instructions or lesson plans, prior to the operation of any type of equipment or accomplishing assigned tasks. Supervisors will routinely evaluate employees on the proper and safe operation of all equipment and associated personal protective equipment (PPE). Unsafe behaviors will be corrected on the spot. Supervisors will provide such instruction at the time of initial assignment and all required refresher training. If guidance is not available, supervisors will accomplish a job hazard analysis (JHA) to determine safe procedures. Additional supervisor responsibilities can be found in DAFI 91-202.

1.2.5.1. Conduct pre-task safety briefings where the task(s) present higher mishap risks, e.g., use of aerial lifts or when conducting new tasks. Refer to DAFPAM 90-803, Risk

Management (RM) Guidelines and Tools, for specific risk management tools.

1.2.5.2. Pre-task safety briefings should include:

1.2.5.2.1. Hazards to be aware of and how to protect employees.

1.2.5.2.2. Review of work assignments and answering employees’ questions concerning the work, hazards, and controls.

1.2.5.2.3. Provide clarification on why the task must be completed and the work methods that must be used.

1.2.6. DAF personnel (military and civilian) will:

1.2.6.1. Comply with OSH guidance.

1.2.6.2. Promptly report unsafe working conditions/activities including any safety, fire, and health hazard deficiencies to the supervisor.

1.2.6.3. Promptly report injuries and illnesses IAW DAFI 91-204, Safety Investigations and Reports, and DAFMAN 91-224, Ground Safety Investigation and Reports.

1.2.6.4. Comply with PPE requirements, including its use, inspection and care.

1.2.6.5. Only operate machines and equipment with functional safety devices.

DAFMAN91-203 24 FEBRUARY 2026 17

1.2.6.6. Notify supervisors in advance if they have a medical condition or are taking medications that could interfere with their safe performance of assigned duties.

1.3. Waivers, Exemptions and Letters of Interpretation.

1.3.1. The affected work center will process a request for waiver or exemption when it is impossible to meet OSH guidance due to operational needs, mission impact, or technical reasons. (T-1) When requesting a waiver or exemption, the work center leadership must identify and implement interim control measures to reduce the degree of risk associated with the hazard to protect personnel, equipment and/or property. (T-1) The process for requesting a waiver IAW DAFMAN 90-161 or exemption is provided in DAFI 91-202.

1.3.2. DAF letters of interpretation (LOIs) are written in response to OSH-related inquiries submitted by DAF personnel or organizations regarding specific aspects of the terminology in this manual or with OSHA standards and applicable adopted national consensus safety guidance. AFSEC/SEG is responsible for responding to and providing clarification to meet the operational needs of the DAF. LOIs provide this response and are intended to clarify the application of established standards, policy, or procedure, but they may not, in themselves, establish or revise DAF policy or procedure. The LOI specifically cites the source policy or procedure document being interpreted and includes the time duration of the LOI.

1.4. How to Use This Document.

1.4.1. This publication incorporates appropriate parts of the 29 CFR §§ 1910 and 1926 standards that relate to DAF operations. References to other DAF publications and national consensus standards are provided as appropriate. DAF activities must comply with OSHA requirements at all times. Use of the military-unique exemption will be applied IAW

Department of Defense Instruction (DoDI) 6055.01, DoD Safety and Occupational Health

(SOH) Program, and DAFI 91-202. (T-0)

1.4.2. This publication is intended for use by all DAF personnel. It provides OSH requirements that will provide equal or greater protection than applicable federal regulatory standards. The information in this publication is for the protection of employees, DAF property and equipment, and to ensure compliance with Federal law. Note: This publication may contain criteria not fully compatible with host-nation safety criteria. In case of conflict, safety offices will facilitate coordinated concerns through their chain of command for resolution. (T-1)

1.5. Applying Standards. DAF personnel must comply with all applicable safety guidance during DAF operations. (T-1) Where there is conflicting guidance, use the guidance that provides the most protection for the employee until conflict resolution is attained.

1.5.1. Compliance.

1.5.1.1. This standard contains both horizontal and vertical fire, safety, and health standards/requirements within the various chapters. Horizontal standards/requirements apply across all industries/activities, whereas, vertical standards/requirements apply to a specific industry/activity, e.g., construction or telecommunications. Vertical standards will be followed to protect employees from hazards identified in specific industries/operations over horizontal standards. (T-0) Where the vertical standard does not cover a hazard, then the horizontal standard will be applied to protect personnel. (T-0) Example: In 29 CFR

1910.252, Welding, Cutting, Brazing, there are specific confined space requirements

18 DAFMAN91-203 24 FEBRUARY 2026

(vertical standard) that must be addressed prior to using the requirements in 29 CFR

1910.146, Permit-Required Confined Spaces (horizontal standard). However, the welding standard does not cover certain requirements found in the Permit-Required Confined Space standard, such as the permit process, training of personnel, etc. that would require following the Permit-Required Confined Space standard, as applicable. Contact your occupational safety office if assistance is needed with vertical/horizontal standards.

1.5.1.2. When OSH guidance or other established safety criteria does not cover a situation, use non-DAF standards to include, but not limited to, national consensus standards, professional safety and health standards, and other Federal agency standards.

1.5.2. OSHA Requirements. DAF safety officials cannot grant exemptions to OSHA standards, only the DoL has the authority to grant exemptions to OSHA standards. Refer to

DAFI 91-202 for additional guidance.

1.5.3. National Consensus Standards. National consensus standards referenced in this document have been adopted, in whole or in part, for DAF use and list the standard, part/document number, part/document title, and date of standard, as applicable, e.g., American

Society of Mechanical Engineers (ASME) B30.9, Slings, and National Fire Protection

Association (NFPA) 70, National Electrical Code. Personnel needing access to American

National Standards Institute (ANSI) and/or other national consensus standards can contact the occupational safety office for guidance and assistance. Consensus standards are identified for awareness/information unless needed to complete a specific task.

1.5.4. Joint Base Safety Standard Compliance. DAF personnel at Joint Bases will follow safety requirements outlined in the approved support agreement(s) developed IAW DoDI

4000.19, Support Agreements, and AFI 25-201, Intra-Service, Intra-Agency, and Inter-Agency

Support Agreements Procedures. (T-1) When there is conflicting guidance, use the guidance that provides the most protection. Further conflicts in safety program requirements will first be coordinated through senior leadership at the local level for resolution. (T-1) If resolution at the local level cannot be obtained, the organization will refer conflicts to AFSEC/SEG through the appropriate MAJCOM/FLDCOM/FOA/DRU safety office for cross-service resolution.

(T-1)

1.6. Job Hazard Analysis (JHA). JHAs are conducted on all work processes, where appropriate, to identify potential fire, safety, or health hazards, determine appropriate training and PPE, and include preventative measures in procedures to mitigate the hazards. Refer to DAFI 91-202 for additional guidance.

1.7. Documentation. This publication specifies the use of Air Force Technical Order (AFTO)

Form 95, Significant Historical Data, AFTO Form 244, Industrial/Support Equipment Record, or other appropriate inspection, maintenance and general-purpose forms for documenting maintenance and inspection actions. With expanding the use of automated systems for tracking these activities, requiring specific paper forms may impede the use of more efficient automated processes. Therefore, the use of automated systems for documenting inspections, maintenance and other activities is acceptable in place of specified AFTO Forms 95 and 244 or other appropriate inspection, maintenance, and general-purpose forms if they contain the same information called for by the designated form. Electronic signatures or other unique personal identifiers (not initials) are acceptable. While this publication offers an optional alternative to paper forms, MAJCOMs, FLDCOMs, Numbered Air Forces (NAFs), local procedures, Technical Orders (TOs), and other

DAFMAN91-203 24 FEBRUARY 2026 19

DAF guidance may continue to require the use of these forms. Check the prescribing directive(s) before discontinuing use of any forms.

1.8. First Aid and Cardiopulmonary Resuscitation (CPR) Training. Initial first aid/CPR training will be accomplished prior to assigning an individual duties where first aid/CPR are requirements of the position. (T-1) All employees requiring CPR training will receive refresher training before their current CPR certification expires. (T-1) Organizational/shop CPR instructors may be trained by the local medical group or trained directly by the American Red Cross, American Heart Association, or a Military Treatment Facility (MTF) approved source. CPR instructors will, in turn, train organizational personnel. (T-1) MTF Commanders determine the

MTFs ability to support CPR training and will notify the units when/if they can no longer provide training. (T-1) Where training is no longer provided by the host medical facility, contact the host

Public Access Defibrillator (PAD) Program Coordinator for assistance in locating training providers. The CPR instructor will ensure training includes PAD training IAW AFI 44-177, Public

Access Defibrillator Program. (T-1) Tactical Combat Casualty Care (TCCC) IAW DoDI 1322.24, Medical Readiness Training, may be used to fulfill first aid training requirements; however, it does not cover CPR. Employees performing duties with risk of severe cuts, burns or electrocution, or perform duties in remote locations away from emergency responders will have a plan for immediate medical response pending definitive transfer and care. (T-0) (Note: Remote location is defined as emergency care that is more than three to four minutes from the workplace.) Refer to

DHA 6000.03, Life Support Training Certification Requirements and Guidance, for additional requirements.

1.9. Bloodborne Pathogen Training. Any person with routine duties where tasks and procedures involve reasonably anticipated exposure to blood or other potentially infectious materials (e.g., individual responsible for rendering medical assistance as part of their duties) must be trained and enrolled in the Bloodborne Pathogen Program IAW 29 CFR § 1910.1030, Bloodborne Pathogen, and AFI 44-108, Infection Prevention and Control Program. (T-0) A person may be required to receive separate first responder training outside of bloodborne pathogen, e.g., First Aid, CPR, TCCC. For workplaces with employees that meet this job description, supervisors will establish a written exposure control plan and conduct training IAW 29 CFR §

1910.1030. (T-0)

20 DAFMAN91-203 24 FEBRUARY 2026

Chapter 2

GENERAL WORK PROCEDURES

2.1. General Information. This chapter provides general work procedures for a safe and healthy workplace, to include the wearing of jewelry, workplace safety, ergonomics, and housekeeping.

The supervisor will ensure the job safety training outline (JSTO) evaluates and identifies PPE requirements IAW DAFI 91-202. (T-1) All facilities will comply with DoD standards, UFC 3-

600-01, Fire Protection Engineering for Facilities, DAF guidance and NFPA 101, Life Safety

Code. (T-0)

2.2. Hazards. Physical hazards are the most common workplace hazards. Hazards can include working from heights; slips, trips and falls; falling objects; spills; faulty equipment; and noise hazards. Other examples of workplace hazards include:

2.2.1. Radiation. Ionizing and non-ionizing are the two basic types of radiation. 29 CFR §

1910.1096, Ionizing Radiation, and AFMAN 48-148, Ionizing Radiation Protection, list requirements for working in an area with ionizing radiation. Non-ionizing radiation includes most radio frequency energy sources, light sources and lasers. Protection levels and requirements are outlined in AFI 48-139, Laser and Optical Radiation Protection Program, and AFI 48-109, Electromagnetic Field Radiation (EMFR) Occupational and Environmental

Health Program.

2.2.2. Noise. Hazardous noise levels can cause hearing loss and/or prevent hearing of warning signals. Hazardous noise issues are common to industrial and outside work areas such as flightlines and maintenance areas but should be uncommon in administrative work areas.

Concerns with workplace noise levels should be evaluated. Installation Bioenvironmental

Engineering (BE), or joint base equivalent, conducts occupational environmental health risk assessments (HRAs), then recommends appropriate controls using the hierarchy of controls methodology. Refer to AFI 48-127, Occupational Noise and Hearing Conservation Program, and 29 CFR § 1910.95, Hearing Conservation Program, for additional guidance.

2.2.3. Thermal Exposure. Refer to DAFI 48-151, Thermal Stress Program, for guidance and information on thermal injuries and their prevention/treatment. Any thermal illness requiring more than first aid is investigated and recorded in the AFSAS by Public Health Flight

Commander or equivalent IAW DAFI 48-151.

2.2.4. Inhalation. Inhalation of hazardous materials can cause acute (irritation, allergic reaction and/or damage the lungs and respiratory tract) and/or chronic (permanent damage, disease, and cancer) health effects. Inhalation hazards need to be evaluated by installation BE to determine if respiratory protection is required. Refer to 29 CFR § 1910.134, Respiratory

Protection, and AFI 48-137, Respiratory Protection Program, for guidance and information.

2.2.5. Chemical. Chemical hazards may exist in everyday products such as cleaning supplies, pesticides, and paints. It may also include vapors and fumes from welding and brazing, solvents, flammable, and combustible liquids. Refer to 29 CFR § 1910.1200, Hazard

Communication, AFI 90-821, Hazard Communication (HAZCOM) Program, and Chapter 22, Flammables and Combustibles, of this publication.

DAFMAN91-203 24 FEBRUARY 2026 21

2.3. Jewelry. Jewelry, such as rings, watches, bracelets, and necklaces, that presents a potential for catching, snagging, pulling, or tearing will be evaluated, controlled and restricted from wear if it presents a hazard to the employee or operation. (T-1)

2.3.1. Finger Rings. Personnel engaged in work in industrial areas, performing maintenance on aircraft, vehicles, equipment or machinery will not wear rings of any material type. (T-0)

Personnel will comply with established safety precautions to prevent personal injury. (T-0)

Rings will not be worn while performing the following activities (this list is not all-inclusive):

2.3.1.1. Climbing, ascending, or descending, activities where personnel could fall or jump from elevated surfaces. (T-0) This includes personnel working on elevated surfaces, e.g., ladders, scaffolds, platforms, roofs, or high reach vehicles, e.g., refuelers, wreckers, sweepers, dump trucks and stake bed trucks.

2.3.1.2. Materials handling operations, e.g., warehousing, parts handling, operating equipment, packing and crating, and attaching/detaching equipment to tow vehicles. (T-0)

2.3.1.3. Any type of work where personnel are exposed to moving machinery, rotating, or revolving parts, or activities that could result in their hands being caught by a moving part and injured. (T-0)

2.3.1.4. Performing work or inspection on or near energized electrical parts where contact could result in injury or damage to equipment. (T-0) Articles such as jewelry, earrings, rings, hair fasteners, bracelets, key chains, or metallic ID (dog) tags with metal chains will also be removed and metal framed eyeglasses will be secured by a band or cord to prevent them from falling into energized electrical circuits or machinery. (T-0) Note: This prohibition includes conductive jewelry, e.g., necklaces, bracelets, watches, etc. These items will permit inadvertent electrical current transfer to the employee.

2.3.1.5. Performing maintenance or inspections on aircraft or ground support equipment, including civil engineering-type or transportation-type maintenance where such activity could result in injury. (T-0)

2.3.1.6. Performing work on or around high temperature equipment where contact with these surfaces could result in injury. (T-0)

2.3.2. Eyewear. Metal eyeglasses will be secured by a band or cord to prevent them from falling into energized electrical circuits or moving industrial machinery. (T-1) Note: It‘s best practice to wear nonmetallic eyeglasses and neck lanyards (e.g., ID cardholders) with a breakaway safety band, lanyard or cord to prevent them from falling into energized electrical circuits or moving industrial machinery.

2.3.3. Medic-Alert. Personnel that require identification for medical issues are permitted to don non-dangling/non-hazardous medical alert items, e.g., clasps, medical cards in hard hats, identification badge holders, to warn co-workers of potential medical issues. Supervisors will ensure such items do not create hazards during employees’ assigned tasks. (T-0)

2.3.4. These restrictions do not apply to administrative and support personnel assigned office duties or visiting these areas but not performing industrial work.

22 DAFMAN91-203 24 FEBRUARY 2026

2.4. Housekeeping.

2.4.1. Floors and Walking Surfaces. Keep areas, in and around facilities, where personnel walk and work free of potential tripping and slipping hazards such as tools, electrical cords, air lines and packaging materials. Clean up spills as soon as possible and post warnings until cleanup is complete. This includes sidewalks, parking lots etc. Facility managers will promptly report potholes and uneven surfaces to installation Civil Engineering (CE). (T-0)

2.4.1.1. Facility managers will ensure the removal of snow and ice from all facilities walkways, sidewalks, handicap ramps and work areas expediently where they may create a hazard or interfere with the work. (T-0) If ice cannot be readily removed, sand or other approved materials will be applied. (T-1) Snow and icicles above walkways will be removed by the unit or a work request will be submitted for areas that cannot be reached.

(T-1) Walkways that are located under rooftops with icicles and accumulation of snow, should be cordoned off until the hazard can be removed.

2.4.1.2. The supervisor will ensure telephone and electrical cords are placed where they do not pose tripping hazards. If placement in foot-traffic areas is unavoidable, cords and cables will be properly protected by molded housing, bridges or other covers approved for such use to prevent tripping. (T-0)

2.4.1.3. Briefcases, wastebaskets, etc., will be placed under desks, against a wall or otherwise out of the way. (T-1)

2.4.1.4. Repair or replace stair and floor defects, such as loose tiles, broken steps, torn carpeting, loose, or curled mats, worn, frayed, or damaged anti-slip material on stairs. (T-1)

2.4.1.5. Do not position a step stool or ladder in front of a door if the door can swing and contact the stool, ladder, or individual using it. Station a safety observer at the door if a step stool or ladder must be placed in a doorway. (T-1)

2.4.2. Hazardous Materials and Waste. Refer to DAFMAN 32-7002, Environmental

Compliance and Pollution Prevention, for approved hazardous waste disposal procedures and guidance. Safety Data Sheets (SDSs) are required for each hazardous chemical, IAW AFI 90-

821. The SDS can assist with the proper handling of the waste prior to being removed for disposal, especially for waste generated as a result of unused and/or expired hazardous chemicals. The supervisor will ensure use or storage of flammable liquids will be kept to a minimum and not exceed the maximum allowable quantities specified in Chapter 22. (T-1)

2.4.3. Packing Supplies and Recycled Materials. Non-soiled excelsior (fine wood shavings), straw, shredded paper, recyclable cardboard, recyclable paper, and other packing/recyclable materials will be stored in an isolated fire-resistant area and/or container. (T-0) Small supplies of packing materials, which are kept in shops for immediate use, will be stored in metal or noncombustible covered containers. (T-1) Remove hazardous material markings and/or placards from empty packaging. Remove protruding nails, brads and staples from crates, cases, packing boxes, casks, boards and lumber to prevent personnel injury.

2.4.4. Electric Buffing Machines. Supervisors will ensure electric buffing machines are equipped with under-voltage/over-voltage sensing and cutoff controls. (T-1)

2.4.5. Stacking Materials. Refer to Air Force Joint Manual (AFJMAN) 23-210, Joint Service

Manual (JSM) For Storage and Materials Handling, for guidance on stacking materials. When

DAFMAN91-203 24 FEBRUARY 2026 23

materials are stacked to a height less than 15 feet, maintain an 18-inch clearance below ceiling sprinkler deflectors. If the stack is over 15 feet in height, increase the clearance to 36 inches

(when only joists, rafters, beams and roof trusses exist, without a ceiling constructed below, a

36 inch clearance will also be required). (T-1) Position all stacks of materials to ensure an 18-inch clearance around light or heating fixtures or follow the manufacturer’s instructions, regardless of height. (T-1)

2.4.6. Storage of materials will not create a hazard. (T-0) Bags, containers, bundles, etc., stored in tiers will be stacked, blocked, interlocked, and limited in height so they are stable and secure against sliding or collapse. (T-1)

2.4.7. Lighting Fixtures. The supervisor will ensure tubular light fixtures (fluorescent/light-emitting diode) will have shields or other protective devices installed to keep the tubes from falling out of the fixture and from accidental contact. (T-1)

2.4.8. Waste disposal containers in food handling environments will be equipped with disposable liner material and emptied not less frequently than once each working day, unless unused. Containers will be maintained in a clean and sanitary condition and sanitized at least once a month. (T-1) All other waste containers will be cleaned, as needed. (T-1) Exterior garbage cans will be securely covered when not actually being filled or emptied. (T-1)

2.4.9. General Safe Practices. All areas, shops, yards, buildings, and mobile equipment facilities/areas will be maintained in a clean and orderly condition. (T-0) Supervisors and employees are responsible for good housekeeping in or around the work area they are supervising or working.

2.4.9.1. Do not place equipment or material where it creates a hazard for employees or visitors, by falling, being a trip hazard or causing the collapse of structures. (T-0)

2.4.9.2. Keep aisles and passageways clear of tripping hazards. (T-0)

2.4.9.3. Ensure moisture accumulation from heating, ventilation and air conditioning

(HVAC) units or other water sources are cleaned up immediately to prevent mold. (T-0)

Submit work orders to installation CE, as appropriate. (T-1)

2.4.9.4. Remove nails from loose lumber or turn the points down. (T-0)

2.4.9.5. Properly store tools and supplies. (T-0)

2.4.9.6. Do not block or obstruct disconnect switches, distribution panels, and alarm supply boxes preventing ready access. (T-0)

2.4.9.7. Stack wire reels with strips of wood between reels. (T-0)

2.4.9.8. Keep noncombustible materials neat and plainly marked, and in designated cabinets. (T-1)

2.4.9.9. Storage Racks/Shelving. The load size and rating of storage racks/shelving will be determined by the manufacturer’s specifications. (T-1) Structural engineers or a certified testing agency will evaluate load size and rating for storage rack shelving units where manufacturer’s specifications are not available or fail to specify the load size and rating. (T-1) The load size and rating will be posted on the storage racks/shelving unit.

(T-1) Exception: Shelving used in administrative areas for lightweight office items needed for administrative work e.g., examples include books, small stocks of paper and

24 DAFMAN91-203 24 FEBRUARY 2026

paper products, and other lightweight items used in office settings. Employees will report any damage to racks at the time of incident, specifically damage due to mechanical equipment. (T-1) Repair defective storage racks in a timely manner. All damage and repairs will be documented appropriately. (T-1)

2.4.9.9.1. Inspections of storage racks/shelving units will follow the manufacturer’s instructions. (T-1)

2.4.9.9.2. Inspection will be conducted frequently to ensure preventative maintenance is completed and damage identified. (T-1) Inspections will include all manufacturer identified storage racks/shelving components. (T-1)

2.4.9.9.3. Inspections will be documented on AFTO Form 95 or MAJCOM/FLDCOM or locally devised automated systems. (T-1)

2.4.9.9.4. Racks/shelving identified as damaged will be tagged with AF Form 979, Danger Tag, or AF Form 981, Out of Order Tag, until repairs are completed. (T-1)

Remove items from racks/shelving and tag or sign “do not use” to prevent damage or injury until the rack/shelving is repaired.

2.4.9.10. Compressed Air. Compressed air will not be used for cleaning purposes except where it is reduced to less than 30 psi, and only with effective chip guarding and PPE.

(T-0) Follow TO, manufacturer’s instruction or local procedures as applicable. Ensure the nozzle discharge tip is a diffuser type. Compressed air will not be used to blow chips or other debris from an employee’s body or clothing.

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