Who Needs Confined Space Training and Why Is It Important?
Learn who needs confined space training, what employees must understand, and why proper training is critical for employers in Oregon and Southwest Washington.
Confined spaces are found in many workplaces, including construction sites, manufacturing facilities, utility systems, warehouses, wastewater operations, agricultural facilities, and maintenance departments.
These spaces are not always obvious. A confined space may look safe from the outside while containing an oxygen-deficient atmosphere, toxic gas, moving equipment, engulfment hazard, electrical energy, or another condition that could prevent an employee from escaping.
That is why confined space training is essential.
KARM Safety Solutions provides practical confined space training for employers and employees throughout Oregon and Southwest Washington. Our training helps workers recognize confined spaces, understand potential hazards, perform their assigned responsibilities, and follow safe entry procedures.
What Is a Confined Space?
A confined space is generally an area that:
- Is large enough for an employee to bodily enter and perform work
- Has limited or restricted means of entry or exit
- Is not designed for continuous employee occupancy
Common examples may include:
- Tanks
- Vaults
- Pits
- Manholes
- Sewers
- Silos
- Process vessels
- Storage bins
- Hoppers
- Crawlspaces
- Utility spaces
- Underground structures
- Some equipment compartments
Not every confined space is automatically a permit-required confined space. The employer must evaluate the space and determine whether it contains hazards that make it a permit space.
What Is a Permit-Required Confined Space?
A permit-required confined space is a confined space that contains, or has the potential to contain, a serious hazard.
A space may be classified as permit-required when it contains:
- A hazardous or potentially hazardous atmosphere
- Material that could engulf an employee
- Inwardly converging walls or a floor that slopes toward a smaller area
- Mechanical, electrical, chemical, or physical hazards
- Another recognized serious safety or health hazard
Before employees enter a permit-required confined space, the employer must identify the hazards and establish procedures to eliminate or control them.
Who Needs Confined Space Training?
Confined space training is not limited to the employee physically entering the space. Several people may have important responsibilities during a confined space entry.
Authorized Entrants
Authorized entrants are employees who enter the permit-required confined space to perform work.
Entrants need to understand:
- The hazards inside the space
- The signs and symptoms of exposure
- Required personal protective equipment
- Atmospheric monitoring procedures
- Communication requirements
- Conditions that require immediate evacuation
- How to use entry, retrieval, and emergency equipment
Entrants must know when to leave the space and must follow the employer’s entry procedures.
Confined Space Attendants
The attendant remains outside the permit space and monitors the entrants.
Attendants need training on:
- Hazards associated with the space
- Maintaining an accurate count of entrants
- Communicating with employees inside the space
- Monitoring conditions inside and outside the space
- Recognizing behavioral signs of exposure
- Ordering entrants to evacuate
- Summoning rescue services
- Preventing unauthorized entry
An attendant should not be assigned other duties that interfere with monitoring and protecting the entrants.
Entry Supervisors
The entry supervisor is responsible for authorizing and overseeing the entry.
Entry supervisors need to understand how to:
- Review the hazards of the space
- Confirm that required testing has been completed
- Verify that hazards are controlled
- Confirm that required equipment is available
- Verify that rescue services are available
- Authorize the entry permit
- Stop an entry when conditions become unsafe
- Cancel the permit when work is complete
Depending on the employer’s program, an entry supervisor may also perform another role, but the person must be properly trained for every role performed.
Employees Who Test or Monitor the Atmosphere
Employees responsible for atmospheric testing need training on:
- Proper operation of the gas monitor
- Calibration or verification requirements
- Sampling techniques
- Testing different levels of the space
- Oxygen, combustible gas, and toxic contaminant readings
- Alarm settings and limitations
- Recording test results
- Conditions that require evacuation
Simply placing a gas monitor near the opening may not provide an accurate picture of the atmosphere throughout the space.
Confined Space Rescue Personnel
Rescue personnel require specialized training based on the spaces, hazards, equipment, and rescue methods they may encounter.
Training may include:
- Non-entry retrieval
- Entry rescue
- Harnesses and retrieval lines
- Tripods and mechanical retrieval devices
- Respiratory protection
- First aid and CPR
- Patient packaging
- Communication
- Hazard control
- Rescue practice in actual or representative spaces
Employers should not assume that calling 911 is a complete confined space rescue plan. Rescue arrangements must be evaluated and coordinated before entry begins.
Employees Who Work Around Permit Spaces
Employees who do not enter confined spaces may still need awareness training.
Employees working in areas where permit spaces are present should understand:
- How to recognize a confined or permit-required space
- Why unauthorized entry is prohibited
- What warning signs and barriers mean
- The basics of the employer’s confined space program
- Who to contact when a space is discovered
- Why they must not attempt an unplanned rescue
This may include maintenance employees, production workers, laborers, supervisors, contractors, and other employees who could encounter a permit space during their work.
Why Is Confined Space Training Important?
Confined Space Hazards May Be Invisible
Many confined space hazards cannot be identified by sight or smell.
A space may contain too little oxygen, a toxic contaminant, a flammable atmosphere, or another dangerous condition without providing an obvious warning.
Training teaches employees not to rely on their senses when evaluating the space.
Conditions Can Change Quickly
A confined space may test safe before entry and become hazardous after work begins.
Conditions may change because of:
- Welding, cutting, or hot work
- Cleaning chemicals
- Painting or coating
- Equipment operation
- Product entering the space
- Nearby work activities
- Failure of ventilation
- Decomposition or chemical reactions
- Changes in weather or airflow
Employees must understand that testing and monitoring may need to continue throughout the entry.
Employees Must Understand Their Individual Roles
A safe entry depends on communication and coordination.
Entrants, attendants, entry supervisors, atmospheric testers, contractors, and rescue personnel each have different responsibilities. Confusion about these roles can delay evacuation or emergency response.
Role-specific training helps everyone understand what they are responsible for before the entry begins.
Training Helps Prevent Unauthorized Entry
An employee may see an open tank, vault, pit, or manhole and believe it is safe to enter briefly.
Even placing part of the body through the opening may be considered entry. Awareness training helps employees recognize restricted spaces and understand why they should never enter without authorization.
Training Improves Emergency Response
Confined space emergencies can develop rapidly.
Employees must know:
- How an emergency will be identified
- How entrants will be notified
- Who will summon rescue
- What rescue service will respond
- How entrants will be removed
- What equipment will be used
- How emergency medical care will be contacted
A rescue plan should be established before entry—not after an employee becomes injured or unresponsive.
Training Supports Regulatory Compliance
Employers are responsible for evaluating their workplaces, identifying confined spaces, determining whether permit-space hazards are present, developing procedures, training employees, and documenting that training.
Effective training helps employers demonstrate that employees understand their duties and can perform them safely.
When Is Refresher Training Needed?
Confined space training is not always a one-time event.
Additional or refresher training may be required when:
- An employee is assigned a new confined space role
- Entry procedures change
- New hazards are introduced
- A new type of confined space is identified
- Employees do not follow established procedures
- An employee lacks sufficient knowledge or proficiency
- An incident or near miss identifies a program weakness
- The written confined space program changes
- Workplace conditions change
Training should be updated whenever employees no longer have the knowledge and skills needed to perform their assigned duties safely.
Is General Online Training Enough?
General classroom or online training can provide important information about confined space definitions, hazards, permits, atmospheric testing, employee roles, and emergency procedures.
However, employees also need instruction that addresses:
- The actual spaces they may enter
- The hazards in those spaces
- The equipment they will use
- The employer’s written program
- The employer’s entry permit
- Workplace-specific communication procedures
- The employer’s rescue arrangements
Confined space training should connect regulatory requirements with the actual work employees will perform.
What Should Employers Do Before Allowing Entry?
Before employees enter a permit-required confined space, employers should:
- Identify and evaluate the space.
- Determine the actual and potential hazards.
- Prevent unauthorized entry.
- Develop a written confined space program.
- Assign trained entrants, attendants, and entry supervisors.
- Eliminate, isolate, or control hazards.
- Test and monitor the atmosphere.
- Provide the necessary equipment.
- Establish communication procedures.
- Arrange for appropriate rescue services.
- Complete and authorize the entry permit.
- Verify that employees understand their responsibilities.
The exact requirements will depend on the space, the work being performed, the hazards, the industry, and the applicable state or federal rules.
Confined Space Training in Oregon and Southwest Washington
KARM Safety Solutions provides practical, real-world confined space training for employers and employees in Oregon and Southwest Washington.
Training can help prepare:
- Authorized entrants
- Attendants
- Entry supervisors
- Atmospheric testers
- Rescue personnel
- Supervisors
- Safety coordinators
- Employees who work around confined spaces
Our goal is to help employers move beyond simply checking a compliance box. Employees should understand how to recognize hazards, follow the entry process, communicate effectively, and respond when conditions change.
Schedule Confined Space Training
Does your company have tanks, pits, vaults, manholes, silos, crawlspaces, process vessels, utility spaces, or other areas with limited entry or exit?
KARM Safety Solutions can help your company understand its training needs and prepare employees for safe confined space work.
Contact KARM Safety Solutions today to schedule confined space training for your team.
Frequently Asked Questions
Does everyone who enters a confined space need training?
Employees who enter permit-required confined spaces must be trained for their assigned entry responsibilities. Additional requirements may apply based on the space, hazards, state, and industry.
Do confined space attendants need training?
Yes. Attendants must understand the hazards, monitor entrants, maintain communication, order evacuation when necessary, prevent unauthorized entry, and summon rescue services.
Do supervisors need confined space training?
Supervisors who authorize or oversee permit-space entries need training on the hazards, permit requirements, acceptable entry conditions, rescue availability, and procedures for stopping or canceling an entry.
Do employees who never enter need training?
Employees who work around permit spaces may need awareness training so they can recognize the spaces, understand warning signs, avoid unauthorized entry, and follow the employer’s program.
Is calling 911 an adequate rescue plan?
Employers should not rely only on calling 911. Rescue services must be evaluated and coordinated in advance, and they must be capable of responding appropriately to the hazards and configuration of the space.
Can confined space training be completed online?
Online training can cover important knowledge-based topics, but employees must also receive training on the employer’s program, their assigned duties, the actual spaces involved, workplace hazards, equipment, entry procedures, and rescue arrangements.
Sources used in preparing this article include Oregon OSHA OAR 437-002-0146, federal OSHA 29 CFR 1910.146, federal OSHA 29 CFR 1926 Subpart AA, and Washington L&I WAC 296-809.
https://www.karmsafetysolutions.com/confined-space-training-OSHA
