What this regulation requires
The regulation requires your employer to evaluate the workplace to identify any permit-required confined spaces. If these spaces exist, your employer must inform you of the dangers and implement a formal permit system to control your entry.
Under 1910.146(d), your employer must provide necessary equipment, such as testing monitors and ventilation, at no cost to you. They must also designate an attendant to monitor the space from the outside and ensure rescue services are available for emergencies.
Who this regulation applies to
This standard applies to general industry employers where you enter spaces with limited entry or exit, such as tanks, vessels, silos, and pits. It does not apply to agriculture, construction, or shipyard employment, which are covered by their own specific OSHA standards.
Common violations
OSHA frequently cites employers for failing to identify permit-required spaces under 1910.146(c)(1) or failing to implement a written program. Other common issues include inadequate atmospheric testing and the failure to station a trained attendant outside the space.
In practice, these violations often look like you being sent into a tank without pre-entry air testing or a supervisor failing to provide a retrieval harness. Sometimes, an employer may ignore the permit system entirely to save time on a maintenance task.
Penalties and enforcement
Violations of this standard are often classified as serious or willful, given the high risk of fatality from asphyxiation or engulfment. OSHA frequently conducts inspections following reports of confined space accidents or fatalities. Fines can reach tens of thousands of dollars per violation, and these incidents often trigger comprehensive agency investigations into your employer's overall safety culture.
Your rights if this rule was broken when you got hurt
You have the right to a workplace free from recognized hazards and the right to observe any atmospheric testing performed before you enter a space. If you believe your employer is forcing you to enter an unsafe space, you can file an anonymous complaint with OSHA and are protected from retaliation under Section 11(c) of the OSH Act.
If you were injured in a confined space, document the conditions, including whether a permit was issued and if an attendant was present. Report the injury to your employer immediately and consult with an attorney to ensure your rights are protected during the Workers' Compensation claims process.
Frequently asked questions
This regulation requires your employer to identify all confined spaces that may contain hazardous atmospheres or engulfment risks. They must then create a written permit program that includes mandatory air testing, ventilation, and the presence of an outside attendant. An attorney can help you determine if these steps were skipped in your case.
A violation often occurs if you were not provided with a written permit, if no air testing was conducted, or if no attendant was stationed outside to monitor your safety. If you were injured because these safeguards were missing, your employer may have failed to meet their legal obligations. An attorney can review your specific situation to identify potential regulatory breaches.
Seek medical attention immediately and document the circumstances of your entry, including the lack of safety equipment or permits. Report the incident to your employer and consider filing a complaint with OSHA to trigger an official inspection. Speaking with a workplace injury attorney is a vital step to ensure you receive the benefits you are entitled to.
OSHA classifies many confined space violations as serious or willful due to the extreme danger of death or permanent injury. Employers can face substantial financial penalties and increased scrutiny from federal inspectors. If your injury resulted from these violations, an attorney can help you leverage this evidence to support your Workers' Compensation claim.