NFPA 350:2022

Chapter 1 Administration
1.1 Scope.
1.2 Purpose.
1.3 Application.
1.4 Equivalency.
Chapter 2 Referenced Publications
2.1 General.
2.2 NFPA Publications.
2.3 Other Publications.
2.4 References for Extracts in Advisory Sections.
Chapter 3 Definitions
3.1 General.
3.2 NFPA Official Definitions.
3.3 General Definitions.
Chapter 4 Identification of Confined Spaces Within a Workplace
4.1 Identification and Documentation of Confined Spaces.
4.2 Identification of Confined Spaces During Construction.
4.3 Determination of Confined Spaces.
4.4 Signs.
4.5 Securing Confined Spaces.
4.6 Identification of Spaces for Nonfacility Personnel.
Chapter 5 General
5.1 General Requirements.
5.2 Confined Space Program.
5.3 Confined Space Evaluation.
5.4 Entry Conditions.
5.5 Basic Requirements and Considerations.
5.6 Roles and Responsibilities.
5.7 Training Guidelines.
5.8 Training Verification.
Chapter 6 Identification and Evaluation of Hazards In and Around Confined Spaces
6.1 General.
6.2 Hazard Anticipation/Preplan.
6.3 Hazard Identification.
6.4 Hazard Evaluation.
6.5 Communications.
6.6 Resources.
Chapter 7 Atmospheric Monitoring
7.1 General.
7.2 Procedures for Atmospheric Monitoring.
7.3 Pre-Entry Testing.
7.4 Selection and Types of Monitors.
7.5 Other Monitor Types.
7.6 Intrinsic Safety.
7.7 Personal Monitoring Versus Remote Sampling.
7.8 Monitor Calibration.
7.9 Zeroing.
7.10 Bump Testing.
7.11 Clearing Peak Values.
7.12 Training and Competency.
7.13 Continuous Atmospheric Monitoring.
7.14 Acceptable Atmospheric Limits for Entry.
7.15 Gas Monitor Maintenance.
7.16 Training.
7.17 Record Retention.
Chapter 8 Hazard Elimination, Mitigation, or Control
8.1 Purpose.
8.2 General.
8.3 Controls for Other Identified Hazards.
8.4 Chemical and Atmospheric Hazards.
8.5 Hot Work.
8.6 Energy Sources.
8.7 Portable Electrical and Mechanical Equipment Used in and Adjacent to Confined Spaces.
8.8 Bonding and Grounding for Flammable and Combustible Materials.
8.9 Ignition Sources.
8.10 Fall Protection.
8.11 Slip, Trip, Ingress, Egress, and Entanglement Hazards.
8.12 Lighting.
8.13 Animals.
8.14 Personal Protective Equipment (PPE).
Chapter 9 Ventilation
9.1 General.
9.2 Ventilation Types.
9.3 Selection and Design of Ventilation.
9.4 Ventilation Equipment.
9.5 Ventilation Installation.
9.6 Consideration in Selection of Ventilation.
Chapter 10 Rescue
10.1 Purpose.
10.2 Rescue Team Qualification.
10.3 Hazard Evaluation and Risk Assessments.
10.4 Standard Operating Procedures (SOPs).
10.5 Regulatory Compliance.
10.6 Incident Response Planning.
10.7 Confined Space Rescue Equipment and Gear.
10.8 Incident Management System.
10.9 Rescue Team Composition.
10.10 Entry Rescue — Rescue Service Capabilities.
Chapter 11 Confined Space Personnel Duties, Responsibilities, Qualifications, and Competencies
11.1 General.
11.2 Entrants.
11.3 Attendant.
11.4 Entry Supervisor.
11.5 Rescuer.
11.6 Gas Tester.
11.7 Owner/Operator.
11.8 Contractor/Subcontractor.
11.9 Ventilation Specialist.
11.10 Isolation Specialist.
11.11 Standby Worker.
11.12 Training.
Chapter 12 Written Confined Space Program
12.1 Purpose.
12.2 Responsible Person and Responsibilities.
12.3 Reporting Unsafe Conditions.
12.4 Periodic Review.
12.5 Identification of Confined Spaces.
12.6 Program Procedures.
12.7 Atmospheric Monitoring.
12.8 Ventilation.
12.9 Rescue.
12.10 Personal Protective Equipment (PPE).
12.11 Isolation Program (Lockout/Tagout).
12.12 Hot/Cold Work.
12.13 Permits.
12.14 Training.
12.15 Recordkeeping.
12.16 Contractors.
12.17 Reporting of Accidents or Near Misses.
12.18 General Fitness for Duty Evaluation.
Chapter 13 Pre-Entry Evaluation and Entry Permit
13.1 General.
13.2 Pre-Entry Evaluation and Permit Elements.
13.3 Reclassification and Alternate Procedures.
Chapter 14 Recordkeeping
14.1 Purpose.
14.2 Employer Site Records.
14.3 Employee Records.
Chapter 15 Management of Change (MOC)
15.1 Purpose.
15.2 Responsibilities and Communication for Implementing MOC.
15.3 MOC Process and Activation.
15.4 MOC-Warranted Confined Space Changes.
15.5 MOC Completion and Verification.
Chapter 16 Prevention Through Design (PtD)
16.1 Purpose.
16.2 Background.
16.3 Responsibilities.
16.4 PtD Process and Activation.
16.5 PtD Warranted Confined Space Changes.
Annex A Explanatory Material
Annex B Sample Confined Space Pre-Entry Evaluation Form and Permit
Annex C OSHA Alternate Entry Procedures and Reclassification
Annex D Sample Management of Change (MOC) Form
Annex E Informational References

This guide provides information to protect workers from conƒned space hazards.