Confined Space – Construction Activities

Confined spaces - such as manholes, crawl spaces, and tanks - are not designed for continuous occupancy and are difficult to exit in the event of an emergency.

People working in confined spaces face life-threatening hazards including toxic substances, electrocutions, explosions, and asphyxiation. This webpage contains information on the new regulation, compliance assistance documents, and other resources OSHA has to help employers and workers understand the rule.

Construction workers often perform tasks in confined spaces - work areas that (1) are large enough for an employee to enter, (2) have limited means of entry or exit, and (3) are not designed for continuous occupancy. These spaces can present physical and atmospheric hazards that can be prevented if addressed prior to entering the space to perform work. This page is a starting point for finding information about these spaces, the hazards they may present, and ways to safely work in them.

Standard(s) covered: 1926.1201 - Subpart AA

Attendees will be able to:
• Describe the difference between a confined space and a permit-required confined space
• Identify the hazards in a permit-required confined space and the methods used to isolate, control, or in other ways protect employees
• Recognize the precautions that must be taken before a confined space is entered
• Explain the duties of each entry team member (authorized entrant, attendant, and entry supervisor)
• Discuss the measures taken to ensure a successful permit space rescue and non-entry rescue

Confined Spaces: Entry Team Training – Construction Activities covers the following topics:

Confined Spaces
• Construction Work
• Competent Person
• Confined Space (defined)
• Permit-Required Confined Space (defined)

Permit-Required Confined Space Hazards
• Atmospheric Hazards
• Engulfment Hazards
• Physical Hazards
• Other Safety Hazards

Permit Space Entry Team
• Duties of the Authorized Entrant
• Duties of the Attendant
• Duties of the Entry Supervisor

Rescue and Emergency Services
• Internal or External Rescue Team
• Employer Duties
• Rescue Employees
• Non-Entry Rescue