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667 HAZWOPER for General Site Workers VIII
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Reasons for Entering Confined Spaces

Workers may need to enter a confined space for various reasons, often related to their job requirements.

Entry into confined spaces is conducted for many reasons. These workers are performing maintenance.

Some common reasons for entering confined spaces include:

  • Inspection: Regular inspections of confined spaces may be necessary to ensure structural integrity, check for corrosion or wear, and identify any potential hazards.
  • Maintenance and repair: Equipment or infrastructure within confined spaces may require routine maintenance, repairs, or replacement. Workers must enter to perform these tasks.
  • Cleaning: Accumulation of debris, sludge, or other materials may necessitate cleaning confined spaces to maintain a safe and functional environment.
  • Installation: Workers may need to enter confined spaces to install new equipment, wiring, or piping systems.
  • Emergency response: In case of accidents, fires, or other emergencies, workers must enter confined spaces to rescue trapped individuals or address hazardous situations.
  • Monitoring and testing: Workers may need to enter confined spaces to conduct environmental testing, such as air quality monitoring or sampling for hazardous substances.
  • Pest control: Infestations by pests or rodents may require workers to enter confined spaces to apply treatments or remove the infestation.
  • Decontamination: If a confined space has been contaminated by hazardous substances, workers may need to enter the area to perform decontamination and cleanup processes.
  • Decommissioning: When a confined space is no longer needed or has reached the end of its useful life, workers may need to enter the space to remove equipment, demolish structures, or perform other decommissioning tasks.
  • Training: Workers might need to enter confined spaces as part of training exercises to learn safety procedures and acquire the necessary skills for their job requirements.

All confined space entries must be well planned before the initial entry. One of the most difficult confined space entries to control is that of unauthorized entry, especially in construction, when there are large numbers of workers and trades involved, such as welders, painters, electricians, and safety monitors. Be sure to review all hazards before entry.

Knowledge Check Choose the best answer for the question.

1-2. In which industry is the control of unauthorized entry into confined spaces most difficult?