OSHA Confined Space Program Requirements: What Must Be in Your Written Program
If your workers ever enter tanks, vaults, pits, manholes, tunnels, or any space not designed for continuous occupancy, OSHA requires a written Permit-Required Confined Space (PRCS) program before anyone enters. Without it, you face citations of up to $16,131 per violation — and far more serious consequences if something goes wrong.
This guide covers exactly what OSHA 29 CFR 1910.146 (general industry) and 29 CFR 1926.1200 (construction) require in a written confined space program, who it applies to, and how to get compliant quickly.
Does OSHA Require a Written Confined Space Program?
Yes. If your facility or jobsite contains permit-required confined spaces, OSHA mandates a written program under 29 CFR 1910.146©(4) for general industry and 29 CFR 1926.1204 for construction. The program must be in writing, available to employees and their authorized representatives, and implemented before any entry occurs.
A permit-required confined space (PRCS) is any confined space that also has one or more of the following characteristics: it contains or has the potential to contain a serious atmospheric hazard; it contains a material that could engulf an entrant; it has an internal configuration that could trap or asphyxiate; or it contains any other recognized serious safety or health hazard.
What Must Be Included in Your Written Confined Space Program
OSHA 29 CFR 1910.146 specifies the following elements as required in every written PRCS program:
Identification and Evaluation of Confined Spaces
You must identify all confined spaces at your facility and classify each one as permit-required or non-permit. This includes maintaining a written inventory and posting required signage at all PRCS locations.
Permit System
Every entry into a PRCS must be documented with a written entry permit. The permit must include the space location, purpose of entry, authorized date and duration, names of authorized entrants and attendants, hazards present, measures to isolate the space, atmospheric testing results, rescue and emergency services, and the entry supervisor’s authorizing signature.
Atmospheric Testing Requirements
The atmosphere must be tested before entry and continuously monitored during entry. Testing sequence matters: test oxygen content first (acceptable range: 19.5%–23.5%), then flammable gases (must be below 10% LEL), then toxic air contaminants. Your program must specify which instruments are used and their calibration requirements.
Roles and Responsibilities
Your program must clearly define three distinct roles and their specific duties. The Entry Supervisor authorizes entry, verifies permit conditions are met, and cancels permits if conditions change. The Authorized Entrant knows the hazards, uses required PPE, communicates with the attendant, and exits immediately when directed. The Attendant monitors entrants from outside the space, maintains an accurate count, and initiates rescue when needed.
Hazard Isolation Procedures
The program must address how hazardous energy, materials, and mechanical hazards will be controlled before entry. This typically includes lockout/tagout procedures, blanking and blinding, purging and inerting, and continuous forced-air ventilation requirements.
Rescue and Emergency Procedures
This is one of the most critical — and most commonly deficient — sections. OSHA requires your program to specify how rescue will be performed (non-entry vs. entry rescue), who will perform it, what equipment will be used (retrieval systems, tripods, harnesses), and how emergency medical services will be summoned. If you rely on outside rescue services, you must inform them of the space hazards in advance and confirm they are capable and equipped.
Contractor Coordination
If contractors will enter permit spaces at your facility, you must coordinate with them before entry begins. This means sharing information about known hazards, briefing them on your permit system, and obtaining information about any hazards they may create during their work.
Employee Training
All authorized entrants, attendants, and entry supervisors must be trained before their initial assignment, whenever their duties change, and whenever the program is revised. Training must address the specific hazards in your permit spaces — not just generic confined space awareness. Documentation of training dates and content is required.
Annual Review and Program Updates
OSHA requires you to review your confined space program annually and whenever any of the following occur: a change in operations affects permit spaces; an authorized entrant reports conditions not addressed by the permit; a near-miss or incident takes place; or the program otherwise fails to protect employees. All review records must be maintained.
Common OSHA Violations for Confined Space Programs
Confined spaces consistently rank among OSHA’s top-cited standards. The most frequent violations include: no written program in place at all; failure to test the atmosphere before entry; no permit system or incomplete permits; inadequate rescue procedures; failure to train employees in their specific roles; and no documented annual program review.
The good news: every one of these violations is preventable with a properly written program and consistent implementation.
Get a Pre-Written Confined Space Program for Your Company
Writing a compliant confined space program from scratch takes 8 to 12 hours when you factor in researching the standard, drafting each required section, building the entry permit template, and creating training documentation.
TemplaKit’s Confined Space Program template covers every element required by OSHA 29 CFR 1910.146 (general industry) and 29 CFR 1926.1200 (construction) in a fully editable Word document. Add your company name, site-specific details, and you’re compliant in under an hour. Available separately for Construction and General Industry at templakit.com/shop.
Frequently Asked Questions
Does OSHA require a written confined space program for construction?
Yes. OSHA’s construction confined space standard (29 CFR 1926 Subpart AA, effective August 2015) requires a written permit-required confined space program for all construction employers whose employees enter permit spaces. The requirements closely mirror the general industry standard under 29 CFR 1910.146.
What is the difference between a permit-required and a non-permit confined space?
All confined spaces have limited means of entry or exit and are not designed for continuous occupancy. A permit-required confined space additionally contains or has the potential to contain a serious atmospheric hazard, an engulfment hazard, a configuration hazard, or any other recognized serious safety risk. Non-permit confined spaces have none of those hazards and do not require a permit system.
How often must confined space training be refreshed?
OSHA does not specify a fixed training interval. Retraining is required whenever an employee’s duties change, the employer has reason to believe the employee lacks the required understanding, or there is evidence of deviations from the permit program. Most safety professionals recommend annual refresher training as a best practice.
Can one attendant monitor multiple permit spaces at the same time?
OSHA permits one attendant to monitor multiple spaces only if doing so does not compromise the attendant’s ability to perform all required duties for each space simultaneously. In practice, this is rarely feasible when spaces are in different locations or have simultaneous active entries. One dedicated attendant per active entry is the strongly recommended approach.
