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4. The stand -by person shall not enter the confined space without alerting an emergency <br />response team or other trained rescue workers of the intent to enter the confined <br />space. Stand -by persons shall not enter the space unless the stand -by person is <br />protected by wearing a self - contained breathing apparatus (SCBA). <br />5. Mechanical ventilation shall be initiated prior to entry into the space and shall <br />continue during the entire occupancy of the space. <br />6. Continuous atmospheric monitoring shall be performed prior to entry into the space <br />and during the entire time of occupancy of the space. <br />7. Hot work is prohibited if the flammability level is 10% of lower explosive level <br />(LEL) or greater. <br />8. A confined space entry permit is required prior to entry. <br />CLASS 2 <br />20 <br />