Which is a critical step before entering a confined space?

Performing a risk assessment is a critical step before entering a confined space because it helps identify potential hazards that could be present in the environment. This evaluation assesses factors such as air quality, potential for harmful gases, physical hazards, and atmospheric conditions that could pose risks to personnel.

The goal of the risk assessment is to ensure that appropriate controls are in place to protect the safety of workers. This includes determining whether ventilation is needed, if monitoring equipment should be used, and what personal protective equipment (PPE) is necessary. By conducting a thorough risk assessment, workers can make informed decisions about the safety measures required before proceeding with the task, thereby minimizing the risk of accidents or injuries in confined spaces.