What is the minimum number of positions required for confined space entry and rescue?

In confined space entry and rescue operations, the required number of personnel is determined by safety protocols aimed at ensuring both effective rescue capabilities and the safety of those involved. The correct choice, which indicates three positions, reflects an essential involves of a team configured to address various roles during an operation.

The three required positions typically include:

1. Entrant: This is the person who actually goes into the confined space to perform tasks or assess conditions.

2. Attendant: This individual remains outside the confined space and monitors the entrant's safety while maintaining communication. The attendant is responsible for initiating rescue operations if necessary.

3. Rescue Team Member: In more complex or hazardous situations, a dedicated member may be assigned to handle rescue operations specifically. This ensures that the team is prepared to act quickly should the entrant need assistance.

This configuration allows for adequate monitoring, communication, and immediate response to emergencies, which are critical elements in maintaining safety in confined spaces. Having only two positions would not fulfill the necessary safety protocols, and adding more than three may not be practical for every scenario, thus making three the minimum standard.